Home / 30,615.53-42,253.83-17,006.72

Finding the Fourth Proportional to 30,615.53, 42,253.83 and 17,006.72

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Solution

The fourth proportional to 30,615.53, 42,253.83 and 17,006.72 is: 23,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.53 : 42,253.83 = 17,006.72 : x
  2. Step 2: Convert to fraction form
    30,615.53/42,253.83 = 17,006.72/x
  3. Step 3: Cross multiply
    30,615.53x = 42,253.83 × 17,006.72
  4. Step 4: Simplify right side
    30,615.53x = 718,598,844.47
  5. Step 5: Solve for x
    x = 718,598,844.47/30,615.53
  6. Step 6: Final answer
    x = 23,471.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.