Home / 40,519.80-60,784.55-12,436.18

Finding the Fourth Proportional to 40,519.80, 60,784.55 and 12,436.18

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Solution

The fourth proportional to 40,519.80, 60,784.55 and 12,436.18 is: 18,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,519.80 : 60,784.55 = 12,436.18 : x
  2. Step 2: Convert to fraction form
    40,519.80/60,784.55 = 12,436.18/x
  3. Step 3: Cross multiply
    40,519.80x = 60,784.55 × 12,436.18
  4. Step 4: Simplify right side
    40,519.80x = 755,927,605.02
  5. Step 5: Solve for x
    x = 755,927,605.02/40,519.80
  6. Step 6: Final answer
    x = 18,655.76

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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.