Home / 31,864.40-47,795.20-9,677.28

Finding the Fourth Proportional to 31,864.40, 47,795.20 and 9,677.28

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Solution

The fourth proportional to 31,864.40, 47,795.20 and 9,677.28 is: 14,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.40 : 47,795.20 = 9,677.28 : x
  2. Step 2: Convert to fraction form
    31,864.40/47,795.20 = 9,677.28/x
  3. Step 3: Cross multiply
    31,864.40x = 47,795.20 × 9,677.28
  4. Step 4: Simplify right side
    31,864.40x = 462,527,533.06
  5. Step 5: Solve for x
    x = 462,527,533.06/31,864.40
  6. Step 6: Final answer
    x = 14,515.49

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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.