Home / 28,854.02-39,820.55-16,109.71

Finding the Fourth Proportional to 28,854.02, 39,820.55 and 16,109.71

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Solution

The fourth proportional to 28,854.02, 39,820.55 and 16,109.71 is: 22,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.02 : 39,820.55 = 16,109.71 : x
  2. Step 2: Convert to fraction form
    28,854.02/39,820.55 = 16,109.71/x
  3. Step 3: Cross multiply
    28,854.02x = 39,820.55 × 16,109.71
  4. Step 4: Simplify right side
    28,854.02x = 641,497,332.44
  5. Step 5: Solve for x
    x = 641,497,332.44/28,854.02
  6. Step 6: Final answer
    x = 22,232.51

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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.