Home / 47,557.32-71,358.12-21,279.84

Finding the Fourth Proportional to 47,557.32, 71,358.12 and 21,279.84

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Solution

The fourth proportional to 47,557.32, 71,358.12 and 21,279.84 is: 31,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,557.32 : 71,358.12 = 21,279.84 : x
  2. Step 2: Convert to fraction form
    47,557.32/71,358.12 = 21,279.84/x
  3. Step 3: Cross multiply
    47,557.32x = 71,358.12 × 21,279.84
  4. Step 4: Simplify right side
    47,557.32x = 1,518,489,376.30
  5. Step 5: Solve for x
    x = 1,518,489,376.30/47,557.32
  6. Step 6: Final answer
    x = 31,929.67

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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.