Home / 30,640.47-42,282.23-17,212.29

Finding the Fourth Proportional to 30,640.47, 42,282.23 and 17,212.29

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Solution

The fourth proportional to 30,640.47, 42,282.23 and 17,212.29 is: 23,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640.47 : 42,282.23 = 17,212.29 : x
  2. Step 2: Convert to fraction form
    30,640.47/42,282.23 = 17,212.29/x
  3. Step 3: Cross multiply
    30,640.47x = 42,282.23 × 17,212.29
  4. Step 4: Simplify right side
    30,640.47x = 727,773,918.55
  5. Step 5: Solve for x
    x = 727,773,918.55/30,640.47
  6. Step 6: Final answer
    x = 23,752.05

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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.