Home / 30,957.44-42,721.52-17,528.80

Finding the Fourth Proportional to 30,957.44, 42,721.52 and 17,528.80

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Solution

The fourth proportional to 30,957.44, 42,721.52 and 17,528.80 is: 24,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,957.44 : 42,721.52 = 17,528.80 : x
  2. Step 2: Convert to fraction form
    30,957.44/42,721.52 = 17,528.80/x
  3. Step 3: Cross multiply
    30,957.44x = 42,721.52 × 17,528.80
  4. Step 4: Simplify right side
    30,957.44x = 748,856,979.78
  5. Step 5: Solve for x
    x = 748,856,979.78/30,957.44
  6. Step 6: Final answer
    x = 24,189.89

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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.