Home / 21,246,429.30-31,916,883.15-20,443,362.90

Finding the Fourth Proportional to 21,246,429.30, 31,916,883.15 and 20,443,362.90

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Solution

The fourth proportional to 21,246,429.30, 31,916,883.15 and 20,443,362.90 is: 30,710,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,429.30 : 31,916,883.15 = 20,443,362.90 : x
  2. Step 2: Convert to fraction form
    21,246,429.30/31,916,883.15 = 20,443,362.90/x
  3. Step 3: Cross multiply
    21,246,429.30x = 31,916,883.15 × 20,443,362.90
  4. Step 4: Simplify right side
    21,246,429.30x = 652,488,424,872,345
  5. Step 5: Solve for x
    x = 652,488,424,872,345/21,246,429.30
  6. Step 6: Final answer
    x = 30,710,498.02

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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.