Home / 38,484-57,428.20-34,336.80

Finding the Fourth Proportional to 38,484, 57,428.20 and 34,336.80

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Solution

The fourth proportional to 38,484, 57,428.20 and 34,336.80 is: 51,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,484 : 57,428.20 = 34,336.80 : x
  2. Step 2: Convert to fraction form
    38,484/57,428.20 = 34,336.80/x
  3. Step 3: Cross multiply
    38,484x = 57,428.20 × 34,336.80
  4. Step 4: Simplify right side
    38,484x = 1,971,900,617.76
  5. Step 5: Solve for x
    x = 1,971,900,617.76/38,484
  6. Step 6: Final answer
    x = 51,239.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.