Home / 21,421.65-32,110.39-8,948.95

Finding the Fourth Proportional to 21,421.65, 32,110.39 and 8,948.95

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Solution

The fourth proportional to 21,421.65, 32,110.39 and 8,948.95 is: 13,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.65 : 32,110.39 = 8,948.95 : x
  2. Step 2: Convert to fraction form
    21,421.65/32,110.39 = 8,948.95/x
  3. Step 3: Cross multiply
    21,421.65x = 32,110.39 × 8,948.95
  4. Step 4: Simplify right side
    21,421.65x = 287,354,274.59
  5. Step 5: Solve for x
    x = 287,354,274.59/21,421.65
  6. Step 6: Final answer
    x = 13,414.20

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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.