Home / 28,238.87-42,337.54-13,458.17

Finding the Fourth Proportional to 28,238.87, 42,337.54 and 13,458.17

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Solution

The fourth proportional to 28,238.87, 42,337.54 and 13,458.17 is: 20,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.87 : 42,337.54 = 13,458.17 : x
  2. Step 2: Convert to fraction form
    28,238.87/42,337.54 = 13,458.17/x
  3. Step 3: Cross multiply
    28,238.87x = 42,337.54 × 13,458.17
  4. Step 4: Simplify right side
    28,238.87x = 569,785,599.01
  5. Step 5: Solve for x
    x = 569,785,599.01/28,238.87
  6. Step 6: Final answer
    x = 20,177.35

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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.