Home / 42,357.08-63,555.02-18,348.72

Finding the Fourth Proportional to 42,357.08, 63,555.02 and 18,348.72

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Solution

The fourth proportional to 42,357.08, 63,555.02 and 18,348.72 is: 27,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,357.08 : 63,555.02 = 18,348.72 : x
  2. Step 2: Convert to fraction form
    42,357.08/63,555.02 = 18,348.72/x
  3. Step 3: Cross multiply
    42,357.08x = 63,555.02 × 18,348.72
  4. Step 4: Simplify right side
    42,357.08x = 1,166,153,266.57
  5. Step 5: Solve for x
    x = 1,166,153,266.57/42,357.08
  6. Step 6: Final answer
    x = 27,531.48

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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.