Home / 35,400.68-53,068.20-15,668.72

Finding the Fourth Proportional to 35,400.68, 53,068.20 and 15,668.72

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Solution

The fourth proportional to 35,400.68, 53,068.20 and 15,668.72 is: 23,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,400.68 : 53,068.20 = 15,668.72 : x
  2. Step 2: Convert to fraction form
    35,400.68/53,068.20 = 15,668.72/x
  3. Step 3: Cross multiply
    35,400.68x = 53,068.20 × 15,668.72
  4. Step 4: Simplify right side
    35,400.68x = 831,510,766.70
  5. Step 5: Solve for x
    x = 831,510,766.70/35,400.68
  6. Step 6: Final answer
    x = 23,488.55

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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.