Home / 22,931.21-31,631.65-14,419.87

Finding the Fourth Proportional to 22,931.21, 31,631.65 and 14,419.87

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Solution

The fourth proportional to 22,931.21, 31,631.65 and 14,419.87 is: 19,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,931.21 : 31,631.65 = 14,419.87 : x
  2. Step 2: Convert to fraction form
    22,931.21/31,631.65 = 14,419.87/x
  3. Step 3: Cross multiply
    22,931.21x = 31,631.65 × 14,419.87
  4. Step 4: Simplify right side
    22,931.21x = 456,124,165.76
  5. Step 5: Solve for x
    x = 456,124,165.76/22,931.21
  6. Step 6: Final answer
    x = 19,890.97

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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.