Home / 40,172.76-60,239.70-13,868.28

Finding the Fourth Proportional to 40,172.76, 60,239.70 and 13,868.28

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Solution

The fourth proportional to 40,172.76, 60,239.70 and 13,868.28 is: 20,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.76 : 60,239.70 = 13,868.28 : x
  2. Step 2: Convert to fraction form
    40,172.76/60,239.70 = 13,868.28/x
  3. Step 3: Cross multiply
    40,172.76x = 60,239.70 × 13,868.28
  4. Step 4: Simplify right side
    40,172.76x = 835,421,026.72
  5. Step 5: Solve for x
    x = 835,421,026.72/40,172.76
  6. Step 6: Final answer
    x = 20,795.71

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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.