Home / 25,615.17-38,428.93-8,084.95

Finding the Fourth Proportional to 25,615.17, 38,428.93 and 8,084.95

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Solution

The fourth proportional to 25,615.17, 38,428.93 and 8,084.95 is: 12,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.17 : 38,428.93 = 8,084.95 : x
  2. Step 2: Convert to fraction form
    25,615.17/38,428.93 = 8,084.95/x
  3. Step 3: Cross multiply
    25,615.17x = 38,428.93 × 8,084.95
  4. Step 4: Simplify right side
    25,615.17x = 310,695,977.60
  5. Step 5: Solve for x
    x = 310,695,977.60/25,615.17
  6. Step 6: Final answer
    x = 12,129.37

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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.