Home / 25,937.76-38,889.36-12,607.20

Finding the Fourth Proportional to 25,937.76, 38,889.36 and 12,607.20

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Solution

The fourth proportional to 25,937.76, 38,889.36 and 12,607.20 is: 18,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,937.76 : 38,889.36 = 12,607.20 : x
  2. Step 2: Convert to fraction form
    25,937.76/38,889.36 = 12,607.20/x
  3. Step 3: Cross multiply
    25,937.76x = 38,889.36 × 12,607.20
  4. Step 4: Simplify right side
    25,937.76x = 490,285,939.39
  5. Step 5: Solve for x
    x = 490,285,939.39/25,937.76
  6. Step 6: Final answer
    x = 18,902.40

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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.