Home / 28,359.70-42,554.19-13,565.62

Finding the Fourth Proportional to 28,359.70, 42,554.19 and 13,565.62

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Solution

The fourth proportional to 28,359.70, 42,554.19 and 13,565.62 is: 20,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.70 : 42,554.19 = 13,565.62 : x
  2. Step 2: Convert to fraction form
    28,359.70/42,554.19 = 13,565.62/x
  3. Step 3: Cross multiply
    28,359.70x = 42,554.19 × 13,565.62
  4. Step 4: Simplify right side
    28,359.70x = 577,273,970.95
  5. Step 5: Solve for x
    x = 577,273,970.95/28,359.70
  6. Step 6: Final answer
    x = 20,355.43

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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.