Home / 31,337.64-47,009.21-12,616.92

Finding the Fourth Proportional to 31,337.64, 47,009.21 and 12,616.92

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Solution

The fourth proportional to 31,337.64, 47,009.21 and 12,616.92 is: 18,926.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.64 : 47,009.21 = 12,616.92 : x
  2. Step 2: Convert to fraction form
    31,337.64/47,009.21 = 12,616.92/x
  3. Step 3: Cross multiply
    31,337.64x = 47,009.21 × 12,616.92
  4. Step 4: Simplify right side
    31,337.64x = 593,111,378.75
  5. Step 5: Solve for x
    x = 593,111,378.75/31,337.64
  6. Step 6: Final answer
    x = 18,926.49

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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.