Home / 45,315.54-67,995.60-20,373.24

Finding the Fourth Proportional to 45,315.54, 67,995.60 and 20,373.24

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Solution

The fourth proportional to 45,315.54, 67,995.60 and 20,373.24 is: 30,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,315.54 : 67,995.60 = 20,373.24 : x
  2. Step 2: Convert to fraction form
    45,315.54/67,995.60 = 20,373.24/x
  3. Step 3: Cross multiply
    45,315.54x = 67,995.60 × 20,373.24
  4. Step 4: Simplify right side
    45,315.54x = 1,385,290,677.74
  5. Step 5: Solve for x
    x = 1,385,290,677.74/45,315.54
  6. Step 6: Final answer
    x = 30,569.88

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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.