Home / 40,520.20-60,780.30-18,334.30

Finding the Fourth Proportional to 40,520.20, 60,780.30 and 18,334.30

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Solution

The fourth proportional to 40,520.20, 60,780.30 and 18,334.30 is: 27,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,520.20 : 60,780.30 = 18,334.30 : x
  2. Step 2: Convert to fraction form
    40,520.20/60,780.30 = 18,334.30/x
  3. Step 3: Cross multiply
    40,520.20x = 60,780.30 × 18,334.30
  4. Step 4: Simplify right side
    40,520.20x = 1,114,364,254.29
  5. Step 5: Solve for x
    x = 1,114,364,254.29/40,520.20
  6. Step 6: Final answer
    x = 27,501.45

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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.