Home / 28,551.76-39,410.56-16,612.80

Finding the Fourth Proportional to 28,551.76, 39,410.56 and 16,612.80

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Solution

The fourth proportional to 28,551.76, 39,410.56 and 16,612.80 is: 22,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.76 : 39,410.56 = 16,612.80 : x
  2. Step 2: Convert to fraction form
    28,551.76/39,410.56 = 16,612.80/x
  3. Step 3: Cross multiply
    28,551.76x = 39,410.56 × 16,612.80
  4. Step 4: Simplify right side
    28,551.76x = 654,719,751.17
  5. Step 5: Solve for x
    x = 654,719,751.17/28,551.76
  6. Step 6: Final answer
    x = 22,930.98

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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.