Home / 28,657.02-39,542.25-16,391.52

Finding the Fourth Proportional to 28,657.02, 39,542.25 and 16,391.52

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Solution

The fourth proportional to 28,657.02, 39,542.25 and 16,391.52 is: 22,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.02 : 39,542.25 = 16,391.52 : x
  2. Step 2: Convert to fraction form
    28,657.02/39,542.25 = 16,391.52/x
  3. Step 3: Cross multiply
    28,657.02x = 39,542.25 × 16,391.52
  4. Step 4: Simplify right side
    28,657.02x = 648,157,581.72
  5. Step 5: Solve for x
    x = 648,157,581.72/28,657.02
  6. Step 6: Final answer
    x = 22,617.76

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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.