Home / 25,681.40-38,522.10-8,152.60

Finding the Fourth Proportional to 25,681.40, 38,522.10 and 8,152.60

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Solution

The fourth proportional to 25,681.40, 38,522.10 and 8,152.60 is: 12,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,681.40 : 38,522.10 = 8,152.60 : x
  2. Step 2: Convert to fraction form
    25,681.40/38,522.10 = 8,152.60/x
  3. Step 3: Cross multiply
    25,681.40x = 38,522.10 × 8,152.60
  4. Step 4: Simplify right side
    25,681.40x = 314,055,272.46
  5. Step 5: Solve for x
    x = 314,055,272.46/25,681.40
  6. Step 6: Final answer
    x = 12,228.90

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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.