Home / 47,539.32-71,308.98-12,478.92

Finding the Fourth Proportional to 47,539.32, 71,308.98 and 12,478.92

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Solution

The fourth proportional to 47,539.32, 71,308.98 and 12,478.92 is: 18,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,539.32 : 71,308.98 = 12,478.92 : x
  2. Step 2: Convert to fraction form
    47,539.32/71,308.98 = 12,478.92/x
  3. Step 3: Cross multiply
    47,539.32x = 71,308.98 × 12,478.92
  4. Step 4: Simplify right side
    47,539.32x = 889,859,056.70
  5. Step 5: Solve for x
    x = 889,859,056.70/47,539.32
  6. Step 6: Final answer
    x = 18,718.38

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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.