Home / 31,458.24-47,374.74-28,373.76

Finding the Fourth Proportional to 31,458.24, 47,374.74 and 28,373.76

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Solution

The fourth proportional to 31,458.24, 47,374.74 and 28,373.76 is: 42,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.24 : 47,374.74 = 28,373.76 : x
  2. Step 2: Convert to fraction form
    31,458.24/47,374.74 = 28,373.76/x
  3. Step 3: Cross multiply
    31,458.24x = 47,374.74 × 28,373.76
  4. Step 4: Simplify right side
    31,458.24x = 1,344,199,502.82
  5. Step 5: Solve for x
    x = 1,344,199,502.82/31,458.24
  6. Step 6: Final answer
    x = 42,729.65

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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.