Home / 42,650.02-63,975.03-21,860.26

Finding the Fourth Proportional to 42,650.02, 63,975.03 and 21,860.26

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Solution

The fourth proportional to 42,650.02, 63,975.03 and 21,860.26 is: 32,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,650.02 : 63,975.03 = 21,860.26 : x
  2. Step 2: Convert to fraction form
    42,650.02/63,975.03 = 21,860.26/x
  3. Step 3: Cross multiply
    42,650.02x = 63,975.03 × 21,860.26
  4. Step 4: Simplify right side
    42,650.02x = 1,398,510,789.31
  5. Step 5: Solve for x
    x = 1,398,510,789.31/42,650.02
  6. Step 6: Final answer
    x = 32,790.39

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.