Home / 21,921,254.70-32,881,882.05-21,039,456.30

Finding the Fourth Proportional to 21,921,254.70, 32,881,882.05 and 21,039,456.30

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Solution

The fourth proportional to 21,921,254.70, 32,881,882.05 and 21,039,456.30 is: 31,559,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921,254.70 : 32,881,882.05 = 21,039,456.30 : x
  2. Step 2: Convert to fraction form
    21,921,254.70/32,881,882.05 = 21,039,456.30/x
  3. Step 3: Cross multiply
    21,921,254.70x = 32,881,882.05 × 21,039,456.30
  4. Step 4: Simplify right side
    21,921,254.70x = 691,816,920,452,729.50
  5. Step 5: Solve for x
    x = 691,816,920,452,729.50/21,921,254.70
  6. Step 6: Final answer
    x = 31,559,184.45

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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.