Home / 30,634.47-42,275.57-17,205.74

Finding the Fourth Proportional to 30,634.47, 42,275.57 and 17,205.74

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Solution

The fourth proportional to 30,634.47, 42,275.57 and 17,205.74 is: 23,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634.47 : 42,275.57 = 17,205.74 : x
  2. Step 2: Convert to fraction form
    30,634.47/42,275.57 = 17,205.74/x
  3. Step 3: Cross multiply
    30,634.47x = 42,275.57 × 17,205.74
  4. Step 4: Simplify right side
    30,634.47x = 727,382,465.77
  5. Step 5: Solve for x
    x = 727,382,465.77/30,634.47
  6. Step 6: Final answer
    x = 23,743.92

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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.