Home / 30,642.76-42,287.04-17,214.02

Finding the Fourth Proportional to 30,642.76, 42,287.04 and 17,214.02

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Solution

The fourth proportional to 30,642.76, 42,287.04 and 17,214.02 is: 23,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.76 : 42,287.04 = 17,214.02 : x
  2. Step 2: Convert to fraction form
    30,642.76/42,287.04 = 17,214.02/x
  3. Step 3: Cross multiply
    30,642.76x = 42,287.04 × 17,214.02
  4. Step 4: Simplify right side
    30,642.76x = 727,929,952.30
  5. Step 5: Solve for x
    x = 727,929,952.30/30,642.76
  6. Step 6: Final answer
    x = 23,755.37

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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.