Home / 25,416.18-38,135.16-12,278.34

Finding the Fourth Proportional to 25,416.18, 38,135.16 and 12,278.34

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Solution

The fourth proportional to 25,416.18, 38,135.16 and 12,278.34 is: 18,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,416.18 : 38,135.16 = 12,278.34 : x
  2. Step 2: Convert to fraction form
    25,416.18/38,135.16 = 12,278.34/x
  3. Step 3: Cross multiply
    25,416.18x = 38,135.16 × 12,278.34
  4. Step 4: Simplify right side
    25,416.18x = 468,236,460.43
  5. Step 5: Solve for x
    x = 468,236,460.43/25,416.18
  6. Step 6: Final answer
    x = 18,422.77

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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.