Home / 30,897.68-42,640.99-17,469.07

Finding the Fourth Proportional to 30,897.68, 42,640.99 and 17,469.07

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Solution

The fourth proportional to 30,897.68, 42,640.99 and 17,469.07 is: 24,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.68 : 42,640.99 = 17,469.07 : x
  2. Step 2: Convert to fraction form
    30,897.68/42,640.99 = 17,469.07/x
  3. Step 3: Cross multiply
    30,897.68x = 42,640.99 × 17,469.07
  4. Step 4: Simplify right side
    30,897.68x = 744,898,288.90
  5. Step 5: Solve for x
    x = 744,898,288.90/30,897.68
  6. Step 6: Final answer
    x = 24,108.55

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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.