Home / 38,113.76-57,172.20-11,818.64

Finding the Fourth Proportional to 38,113.76, 57,172.20 and 11,818.64

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Solution

The fourth proportional to 38,113.76, 57,172.20 and 11,818.64 is: 17,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,113.76 : 57,172.20 = 11,818.64 : x
  2. Step 2: Convert to fraction form
    38,113.76/57,172.20 = 11,818.64/x
  3. Step 3: Cross multiply
    38,113.76x = 57,172.20 × 11,818.64
  4. Step 4: Simplify right side
    38,113.76x = 675,697,649.81
  5. Step 5: Solve for x
    x = 675,697,649.81/38,113.76
  6. Step 6: Final answer
    x = 17,728.44

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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.