Home / 22,931.28-31,650.80-13,983.72

Finding the Fourth Proportional to 22,931.28, 31,650.80 and 13,983.72

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Solution

The fourth proportional to 22,931.28, 31,650.80 and 13,983.72 is: 19,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,931.28 : 31,650.80 = 13,983.72 : x
  2. Step 2: Convert to fraction form
    22,931.28/31,650.80 = 13,983.72/x
  3. Step 3: Cross multiply
    22,931.28x = 31,650.80 × 13,983.72
  4. Step 4: Simplify right side
    22,931.28x = 442,595,924.98
  5. Step 5: Solve for x
    x = 442,595,924.98/22,931.28
  6. Step 6: Final answer
    x = 19,300.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.