Home / 38,941.95-58,418.56-12,278.89

Finding the Fourth Proportional to 38,941.95, 58,418.56 and 12,278.89

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Solution

The fourth proportional to 38,941.95, 58,418.56 and 12,278.89 is: 18,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,941.95 : 58,418.56 = 12,278.89 : x
  2. Step 2: Convert to fraction form
    38,941.95/58,418.56 = 12,278.89/x
  3. Step 3: Cross multiply
    38,941.95x = 58,418.56 × 12,278.89
  4. Step 4: Simplify right side
    38,941.95x = 717,314,956.85
  5. Step 5: Solve for x
    x = 717,314,956.85/38,941.95
  6. Step 6: Final answer
    x = 18,420.11

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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.