Home / 31,770.28-47,637.18-12,036.26

Finding the Fourth Proportional to 31,770.28, 47,637.18 and 12,036.26

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Solution

The fourth proportional to 31,770.28, 47,637.18 and 12,036.26 is: 18,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,770.28 : 47,637.18 = 12,036.26 : x
  2. Step 2: Convert to fraction form
    31,770.28/47,637.18 = 12,036.26/x
  3. Step 3: Cross multiply
    31,770.28x = 47,637.18 × 12,036.26
  4. Step 4: Simplify right side
    31,770.28x = 573,373,484.15
  5. Step 5: Solve for x
    x = 573,373,484.15/31,770.28
  6. Step 6: Final answer
    x = 18,047.48

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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.