Home / 31,380.98-47,071.31-14,740.92

Finding the Fourth Proportional to 31,380.98, 47,071.31 and 14,740.92

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Solution

The fourth proportional to 31,380.98, 47,071.31 and 14,740.92 is: 22,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.98 : 47,071.31 = 14,740.92 : x
  2. Step 2: Convert to fraction form
    31,380.98/47,071.31 = 14,740.92/x
  3. Step 3: Cross multiply
    31,380.98x = 47,071.31 × 14,740.92
  4. Step 4: Simplify right side
    31,380.98x = 693,874,341.30
  5. Step 5: Solve for x
    x = 693,874,341.30/31,380.98
  6. Step 6: Final answer
    x = 22,111.31

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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.