Home / 21,470.07-32,205.19-8,981.34

Finding the Fourth Proportional to 21,470.07, 32,205.19 and 8,981.34

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Solution

The fourth proportional to 21,470.07, 32,205.19 and 8,981.34 is: 13,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470.07 : 32,205.19 = 8,981.34 : x
  2. Step 2: Convert to fraction form
    21,470.07/32,205.19 = 8,981.34/x
  3. Step 3: Cross multiply
    21,470.07x = 32,205.19 × 8,981.34
  4. Step 4: Simplify right side
    21,470.07x = 289,245,761.15
  5. Step 5: Solve for x
    x = 289,245,761.15/21,470.07
  6. Step 6: Final answer
    x = 13,472.05

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1.5x scale

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.