Home / 40,139.40-60,216.06-13,487.99

Finding the Fourth Proportional to 40,139.40, 60,216.06 and 13,487.99

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Solution

The fourth proportional to 40,139.40, 60,216.06 and 13,487.99 is: 20,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.40 : 60,216.06 = 13,487.99 : x
  2. Step 2: Convert to fraction form
    40,139.40/60,216.06 = 13,487.99/x
  3. Step 3: Cross multiply
    40,139.40x = 60,216.06 × 13,487.99
  4. Step 4: Simplify right side
    40,139.40x = 812,193,547.68
  5. Step 5: Solve for x
    x = 812,193,547.68/40,139.40
  6. Step 6: Final answer
    x = 20,234.32

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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.