Home / 21,020,823.92-29,008,779-11,363,031.92

Finding the Fourth Proportional to 21,020,823.92, 29,008,779 and 11,363,031.92

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Solution

The fourth proportional to 21,020,823.92, 29,008,779 and 11,363,031.92 is: 15,681,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,823.92 : 29,008,779 = 11,363,031.92 : x
  2. Step 2: Convert to fraction form
    21,020,823.92/29,008,779 = 11,363,031.92/x
  3. Step 3: Cross multiply
    21,020,823.92x = 29,008,779 × 11,363,031.92
  4. Step 4: Simplify right side
    21,020,823.92x = 329,627,681,737,225.69
  5. Step 5: Solve for x
    x = 329,627,681,737,225.69/21,020,823.92
  6. Step 6: Final answer
    x = 15,681,006.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.