Home / 40,885.60-61,335.69-11,302.78

Finding the Fourth Proportional to 40,885.60, 61,335.69 and 11,302.78

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Solution

The fourth proportional to 40,885.60, 61,335.69 and 11,302.78 is: 16,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,885.60 : 61,335.69 = 11,302.78 : x
  2. Step 2: Convert to fraction form
    40,885.60/61,335.69 = 11,302.78/x
  3. Step 3: Cross multiply
    40,885.60x = 61,335.69 × 11,302.78
  4. Step 4: Simplify right side
    40,885.60x = 693,263,810.22
  5. Step 5: Solve for x
    x = 693,263,810.22/40,885.60
  6. Step 6: Final answer
    x = 16,956.19

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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.