Home / 43,155.02-64,732.51-11,990.26

Finding the Fourth Proportional to 43,155.02, 64,732.51 and 11,990.26

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Solution

The fourth proportional to 43,155.02, 64,732.51 and 11,990.26 is: 17,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,155.02 : 64,732.51 = 11,990.26 : x
  2. Step 2: Convert to fraction form
    43,155.02/64,732.51 = 11,990.26/x
  3. Step 3: Cross multiply
    43,155.02x = 64,732.51 × 11,990.26
  4. Step 4: Simplify right side
    43,155.02x = 776,159,625.35
  5. Step 5: Solve for x
    x = 776,159,625.35/43,155.02
  6. Step 6: Final answer
    x = 17,985.38

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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.