Home / 30,559.16-42,169.86-17,127.95

Finding the Fourth Proportional to 30,559.16, 42,169.86 and 17,127.95

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Solution

The fourth proportional to 30,559.16, 42,169.86 and 17,127.95 is: 23,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559.16 : 42,169.86 = 17,127.95 : x
  2. Step 2: Convert to fraction form
    30,559.16/42,169.86 = 17,127.95/x
  3. Step 3: Cross multiply
    30,559.16x = 42,169.86 × 17,127.95
  4. Step 4: Simplify right side
    30,559.16x = 722,283,042.74
  5. Step 5: Solve for x
    x = 722,283,042.74/30,559.16
  6. Step 6: Final answer
    x = 23,635.57

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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.