Home / 31,705.28-47,564.40-10,926.08

Finding the Fourth Proportional to 31,705.28, 47,564.40 and 10,926.08

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Solution

The fourth proportional to 31,705.28, 47,564.40 and 10,926.08 is: 16,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.28 : 47,564.40 = 10,926.08 : x
  2. Step 2: Convert to fraction form
    31,705.28/47,564.40 = 10,926.08/x
  3. Step 3: Cross multiply
    31,705.28x = 47,564.40 × 10,926.08
  4. Step 4: Simplify right side
    31,705.28x = 519,692,439.55
  5. Step 5: Solve for x
    x = 519,692,439.55/31,705.28
  6. Step 6: Final answer
    x = 16,391.35

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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.