Home / 30,718.50-42,393.66-17,291.04

Finding the Fourth Proportional to 30,718.50, 42,393.66 and 17,291.04

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Solution

The fourth proportional to 30,718.50, 42,393.66 and 17,291.04 is: 23,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.50 : 42,393.66 = 17,291.04 : x
  2. Step 2: Convert to fraction form
    30,718.50/42,393.66 = 17,291.04/x
  3. Step 3: Cross multiply
    30,718.50x = 42,393.66 × 17,291.04
  4. Step 4: Simplify right side
    30,718.50x = 733,030,470.81
  5. Step 5: Solve for x
    x = 733,030,470.81/30,718.50
  6. Step 6: Final answer
    x = 23,862.83

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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.