Home / 40,262.80-60,412.02-13,986.40

Finding the Fourth Proportional to 40,262.80, 60,412.02 and 13,986.40

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Solution

The fourth proportional to 40,262.80, 60,412.02 and 13,986.40 is: 20,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,262.80 : 60,412.02 = 13,986.40 : x
  2. Step 2: Convert to fraction form
    40,262.80/60,412.02 = 13,986.40/x
  3. Step 3: Cross multiply
    40,262.80x = 60,412.02 × 13,986.40
  4. Step 4: Simplify right side
    40,262.80x = 844,946,676.53
  5. Step 5: Solve for x
    x = 844,946,676.53/40,262.80
  6. Step 6: Final answer
    x = 20,985.79

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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.