Home / 40,824.56-61,239.06-12,748.47

Finding the Fourth Proportional to 40,824.56, 61,239.06 and 12,748.47

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Solution

The fourth proportional to 40,824.56, 61,239.06 and 12,748.47 is: 19,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,824.56 : 61,239.06 = 12,748.47 : x
  2. Step 2: Convert to fraction form
    40,824.56/61,239.06 = 12,748.47/x
  3. Step 3: Cross multiply
    40,824.56x = 61,239.06 × 12,748.47
  4. Step 4: Simplify right side
    40,824.56x = 780,704,319.24
  5. Step 5: Solve for x
    x = 780,704,319.24/40,824.56
  6. Step 6: Final answer
    x = 19,123.40

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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.