Home / 31,353.64-47,044.86-13,589.72

Finding the Fourth Proportional to 31,353.64, 47,044.86 and 13,589.72

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Solution

The fourth proportional to 31,353.64, 47,044.86 and 13,589.72 is: 20,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,353.64 : 47,044.86 = 13,589.72 : x
  2. Step 2: Convert to fraction form
    31,353.64/47,044.86 = 13,589.72/x
  3. Step 3: Cross multiply
    31,353.64x = 47,044.86 × 13,589.72
  4. Step 4: Simplify right side
    31,353.64x = 639,326,474.84
  5. Step 5: Solve for x
    x = 639,326,474.84/31,353.64
  6. Step 6: Final answer
    x = 20,390.82

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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.