Home / 21,415.59-32,125.56-7,373.78

Finding the Fourth Proportional to 21,415.59, 32,125.56 and 7,373.78

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Solution

The fourth proportional to 21,415.59, 32,125.56 and 7,373.78 is: 11,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.59 : 32,125.56 = 7,373.78 : x
  2. Step 2: Convert to fraction form
    21,415.59/32,125.56 = 7,373.78/x
  3. Step 3: Cross multiply
    21,415.59x = 32,125.56 × 7,373.78
  4. Step 4: Simplify right side
    21,415.59x = 236,886,966.19
  5. Step 5: Solve for x
    x = 236,886,966.19/21,415.59
  6. Step 6: Final answer
    x = 11,061.43

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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.