Home / 29,555.60-40,777.98-18,926.78

Finding the Fourth Proportional to 29,555.60, 40,777.98 and 18,926.78

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Solution

The fourth proportional to 29,555.60, 40,777.98 and 18,926.78 is: 26,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,555.60 : 40,777.98 = 18,926.78 : x
  2. Step 2: Convert to fraction form
    29,555.60/40,777.98 = 18,926.78/x
  3. Step 3: Cross multiply
    29,555.60x = 40,777.98 × 18,926.78
  4. Step 4: Simplify right side
    29,555.60x = 771,795,856.30
  5. Step 5: Solve for x
    x = 771,795,856.30/29,555.60
  6. Step 6: Final answer
    x = 26,113.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.