Home / 21,425.11-32,137.66-9,730.13

Finding the Fourth Proportional to 21,425.11, 32,137.66 and 9,730.13

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Solution

The fourth proportional to 21,425.11, 32,137.66 and 9,730.13 is: 14,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.11 : 32,137.66 = 9,730.13 : x
  2. Step 2: Convert to fraction form
    21,425.11/32,137.66 = 9,730.13/x
  3. Step 3: Cross multiply
    21,425.11x = 32,137.66 × 9,730.13
  4. Step 4: Simplify right side
    21,425.11x = 312,703,461.17
  5. Step 5: Solve for x
    x = 312,703,461.17/21,425.11
  6. Step 6: Final answer
    x = 14,595.19

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1.5x scale

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.