Home / 40,103.84-60,153.20-13,809.12

Finding the Fourth Proportional to 40,103.84, 60,153.20 and 13,809.12

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Solution

The fourth proportional to 40,103.84, 60,153.20 and 13,809.12 is: 20,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,103.84 : 60,153.20 = 13,809.12 : x
  2. Step 2: Convert to fraction form
    40,103.84/60,153.20 = 13,809.12/x
  3. Step 3: Cross multiply
    40,103.84x = 60,153.20 × 13,809.12
  4. Step 4: Simplify right side
    40,103.84x = 830,662,757.18
  5. Step 5: Solve for x
    x = 830,662,757.18/40,103.84
  6. Step 6: Final answer
    x = 20,712.80

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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.