Home / 25,724.24-38,587.64-12,587.60

Finding the Fourth Proportional to 25,724.24, 38,587.64 and 12,587.60

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Solution

The fourth proportional to 25,724.24, 38,587.64 and 12,587.60 is: 18,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,724.24 : 38,587.64 = 12,587.60 : x
  2. Step 2: Convert to fraction form
    25,724.24/38,587.64 = 12,587.60/x
  3. Step 3: Cross multiply
    25,724.24x = 38,587.64 × 12,587.60
  4. Step 4: Simplify right side
    25,724.24x = 485,725,777.26
  5. Step 5: Solve for x
    x = 485,725,777.26/25,724.24
  6. Step 6: Final answer
    x = 18,882.03

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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.