Home / 45,487.20-68,218.65-13,897.20

Finding the Fourth Proportional to 45,487.20, 68,218.65 and 13,897.20

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Solution

The fourth proportional to 45,487.20, 68,218.65 and 13,897.20 is: 20,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,487.20 : 68,218.65 = 13,897.20 : x
  2. Step 2: Convert to fraction form
    45,487.20/68,218.65 = 13,897.20/x
  3. Step 3: Cross multiply
    45,487.20x = 68,218.65 × 13,897.20
  4. Step 4: Simplify right side
    45,487.20x = 948,048,222.78
  5. Step 5: Solve for x
    x = 948,048,222.78/45,487.20
  6. Step 6: Final answer
    x = 20,842.09

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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.