Home / 31,925.32-47,876.46-13,458.76

Finding the Fourth Proportional to 31,925.32, 47,876.46 and 13,458.76

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Solution

The fourth proportional to 31,925.32, 47,876.46 and 13,458.76 is: 20,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,925.32 : 47,876.46 = 13,458.76 : x
  2. Step 2: Convert to fraction form
    31,925.32/47,876.46 = 13,458.76/x
  3. Step 3: Cross multiply
    31,925.32x = 47,876.46 × 13,458.76
  4. Step 4: Simplify right side
    31,925.32x = 644,357,784.79
  5. Step 5: Solve for x
    x = 644,357,784.79/31,925.32
  6. Step 6: Final answer
    x = 20,183.28

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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.