Home / 21,272,894.80-31,872,017.40-17,465,765.20

Finding the Fourth Proportional to 21,272,894.80, 31,872,017.40 and 17,465,765.20

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Solution

The fourth proportional to 21,272,894.80, 31,872,017.40 and 17,465,765.20 is: 26,168,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272,894.80 : 31,872,017.40 = 17,465,765.20 : x
  2. Step 2: Convert to fraction form
    21,272,894.80/31,872,017.40 = 17,465,765.20/x
  3. Step 3: Cross multiply
    21,272,894.80x = 31,872,017.40 × 17,465,765.20
  4. Step 4: Simplify right side
    21,272,894.80x = 556,669,172,358,714.44
  5. Step 5: Solve for x
    x = 556,669,172,358,714.44/21,272,894.80
  6. Step 6: Final answer
    x = 26,168,002.88

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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.