Home / 31,470.34-47,205.81-8,981.00

Finding the Fourth Proportional to 31,470.34, 47,205.81 and 8,981.00

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Solution

The fourth proportional to 31,470.34, 47,205.81 and 8,981.00 is: 13,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.34 : 47,205.81 = 8,981.00 : x
  2. Step 2: Convert to fraction form
    31,470.34/47,205.81 = 8,981.00/x
  3. Step 3: Cross multiply
    31,470.34x = 47,205.81 × 8,981.00
  4. Step 4: Simplify right side
    31,470.34x = 423,955,143.58
  5. Step 5: Solve for x
    x = 423,955,143.58/31,470.34
  6. Step 6: Final answer
    x = 13,471.58

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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.