Home / 25,438.80-38,158.02-7,908.60

Finding the Fourth Proportional to 25,438.80, 38,158.02 and 7,908.60

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Solution

The fourth proportional to 25,438.80, 38,158.02 and 7,908.60 is: 11,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,438.80 : 38,158.02 = 7,908.60 : x
  2. Step 2: Convert to fraction form
    25,438.80/38,158.02 = 7,908.60/x
  3. Step 3: Cross multiply
    25,438.80x = 38,158.02 × 7,908.60
  4. Step 4: Simplify right side
    25,438.80x = 301,776,516.97
  5. Step 5: Solve for x
    x = 301,776,516.97/25,438.80
  6. Step 6: Final answer
    x = 11,862.84

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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.