Home / 20,639,717.04-28,482,827.75-11,347,445.21

Finding the Fourth Proportional to 20,639,717.04, 28,482,827.75 and 11,347,445.21

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Solution

The fourth proportional to 20,639,717.04, 28,482,827.75 and 11,347,445.21 is: 15,659,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,717.04 : 28,482,827.75 = 11,347,445.21 : x
  2. Step 2: Convert to fraction form
    20,639,717.04/28,482,827.75 = 11,347,445.21/x
  3. Step 3: Cross multiply
    20,639,717.04x = 28,482,827.75 × 11,347,445.21
  4. Step 4: Simplify right side
    20,639,717.04x = 323,207,327,162,394.12
  5. Step 5: Solve for x
    x = 323,207,327,162,394.12/20,639,717.04
  6. Step 6: Final answer
    x = 15,659,484.40

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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.