Home / 30,641.77-42,283.37-17,215.26

Finding the Fourth Proportional to 30,641.77, 42,283.37 and 17,215.26

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Solution

The fourth proportional to 30,641.77, 42,283.37 and 17,215.26 is: 23,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.77 : 42,283.37 = 17,215.26 : x
  2. Step 2: Convert to fraction form
    30,641.77/42,283.37 = 17,215.26/x
  3. Step 3: Cross multiply
    30,641.77x = 42,283.37 × 17,215.26
  4. Step 4: Simplify right side
    30,641.77x = 727,919,114.79
  5. Step 5: Solve for x
    x = 727,919,114.79/30,641.77
  6. Step 6: Final answer
    x = 23,755.78

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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.