Home / 21,217,972.92-31,827,181.68-16,985,049

Finding the Fourth Proportional to 21,217,972.92, 31,827,181.68 and 16,985,049

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Solution

The fourth proportional to 21,217,972.92, 31,827,181.68 and 16,985,049 is: 25,477,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,972.92 : 31,827,181.68 = 16,985,049 : x
  2. Step 2: Convert to fraction form
    21,217,972.92/31,827,181.68 = 16,985,049/x
  3. Step 3: Cross multiply
    21,217,972.92x = 31,827,181.68 × 16,985,049
  4. Step 4: Simplify right side
    21,217,972.92x = 540,586,240,366,702.31
  5. Step 5: Solve for x
    x = 540,586,240,366,702.31/21,217,972.92
  6. Step 6: Final answer
    x = 25,477,751.45

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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.