Home / 31,459.76-47,150.76-15,881.84

Finding the Fourth Proportional to 31,459.76, 47,150.76 and 15,881.84

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Solution

The fourth proportional to 31,459.76, 47,150.76 and 15,881.84 is: 23,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.76 : 47,150.76 = 15,881.84 : x
  2. Step 2: Convert to fraction form
    31,459.76/47,150.76 = 15,881.84/x
  3. Step 3: Cross multiply
    31,459.76x = 47,150.76 × 15,881.84
  4. Step 4: Simplify right side
    31,459.76x = 748,840,826.20
  5. Step 5: Solve for x
    x = 748,840,826.20/31,459.76
  6. Step 6: Final answer
    x = 23,803.13

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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.