Home / 31,459.24-47,376.25-28,374.76

Finding the Fourth Proportional to 31,459.24, 47,376.25 and 28,374.76

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Solution

The fourth proportional to 31,459.24, 47,376.25 and 28,374.76 is: 42,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.24 : 47,376.25 = 28,374.76 : x
  2. Step 2: Convert to fraction form
    31,459.24/47,376.25 = 28,374.76/x
  3. Step 3: Cross multiply
    31,459.24x = 47,376.25 × 28,374.76
  4. Step 4: Simplify right side
    31,459.24x = 1,344,289,723.45
  5. Step 5: Solve for x
    x = 1,344,289,723.45/31,459.24
  6. Step 6: Final answer
    x = 42,731.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.