Home / 40,397.49-60,604.91-20,145.28

Finding the Fourth Proportional to 40,397.49, 60,604.91 and 20,145.28

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Solution

The fourth proportional to 40,397.49, 60,604.91 and 20,145.28 is: 30,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,397.49 : 60,604.91 = 20,145.28 : x
  2. Step 2: Convert to fraction form
    40,397.49/60,604.91 = 20,145.28/x
  3. Step 3: Cross multiply
    40,397.49x = 60,604.91 × 20,145.28
  4. Step 4: Simplify right side
    40,397.49x = 1,220,902,931.58
  5. Step 5: Solve for x
    x = 1,220,902,931.58/40,397.49
  6. Step 6: Final answer
    x = 30,222.25

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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.