Home / 28,160.41-42,230.89-13,359.28

Finding the Fourth Proportional to 28,160.41, 42,230.89 and 13,359.28

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Solution

The fourth proportional to 28,160.41, 42,230.89 and 13,359.28 is: 20,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.41 : 42,230.89 = 13,359.28 : x
  2. Step 2: Convert to fraction form
    28,160.41/42,230.89 = 13,359.28/x
  3. Step 3: Cross multiply
    28,160.41x = 42,230.89 × 13,359.28
  4. Step 4: Simplify right side
    28,160.41x = 564,174,284.16
  5. Step 5: Solve for x
    x = 564,174,284.16/28,160.41
  6. Step 6: Final answer
    x = 20,034.31

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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.