Home / 20,617.07-28,432.77-17,437.02

Finding the Fourth Proportional to 20,617.07, 28,432.77 and 17,437.02

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Solution

The fourth proportional to 20,617.07, 28,432.77 and 17,437.02 is: 24,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.07 : 28,432.77 = 17,437.02 : x
  2. Step 2: Convert to fraction form
    20,617.07/28,432.77 = 17,437.02/x
  3. Step 3: Cross multiply
    20,617.07x = 28,432.77 × 17,437.02
  4. Step 4: Simplify right side
    20,617.07x = 495,782,779.15
  5. Step 5: Solve for x
    x = 495,782,779.15/20,617.07
  6. Step 6: Final answer
    x = 24,047.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.