Home / 45,213.84-67,830.08-15,627.78

Finding the Fourth Proportional to 45,213.84, 67,830.08 and 15,627.78

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Solution

The fourth proportional to 45,213.84, 67,830.08 and 15,627.78 is: 23,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,213.84 : 67,830.08 = 15,627.78 : x
  2. Step 2: Convert to fraction form
    45,213.84/67,830.08 = 15,627.78/x
  3. Step 3: Cross multiply
    45,213.84x = 67,830.08 × 15,627.78
  4. Step 4: Simplify right side
    45,213.84x = 1,060,033,489.48
  5. Step 5: Solve for x
    x = 1,060,033,489.48/45,213.84
  6. Step 6: Final answer
    x = 23,444.89

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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.