Home / 43,320.47-64,983.02-13,740.66

Finding the Fourth Proportional to 43,320.47, 64,983.02 and 13,740.66

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Solution

The fourth proportional to 43,320.47, 64,983.02 and 13,740.66 is: 20,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,320.47 : 64,983.02 = 13,740.66 : x
  2. Step 2: Convert to fraction form
    43,320.47/64,983.02 = 13,740.66/x
  3. Step 3: Cross multiply
    43,320.47x = 64,983.02 × 13,740.66
  4. Step 4: Simplify right side
    43,320.47x = 892,909,514.89
  5. Step 5: Solve for x
    x = 892,909,514.89/43,320.47
  6. Step 6: Final answer
    x = 20,611.73

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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.