Home / 25,628.12-38,459.28-8,988.14

Finding the Fourth Proportional to 25,628.12, 38,459.28 and 8,988.14

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Solution

The fourth proportional to 25,628.12, 38,459.28 and 8,988.14 is: 13,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,628.12 : 38,459.28 = 8,988.14 : x
  2. Step 2: Convert to fraction form
    25,628.12/38,459.28 = 8,988.14/x
  3. Step 3: Cross multiply
    25,628.12x = 38,459.28 × 8,988.14
  4. Step 4: Simplify right side
    25,628.12x = 345,677,392.94
  5. Step 5: Solve for x
    x = 345,677,392.94/25,628.12
  6. Step 6: Final answer
    x = 13,488.21

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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.