Home / 30,702.97-42,363.71-17,953.68

Finding the Fourth Proportional to 30,702.97, 42,363.71 and 17,953.68

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Solution

The fourth proportional to 30,702.97, 42,363.71 and 17,953.68 is: 24,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.97 : 42,363.71 = 17,953.68 : x
  2. Step 2: Convert to fraction form
    30,702.97/42,363.71 = 17,953.68/x
  3. Step 3: Cross multiply
    30,702.97x = 42,363.71 × 17,953.68
  4. Step 4: Simplify right side
    30,702.97x = 760,584,271.93
  5. Step 5: Solve for x
    x = 760,584,271.93/30,702.97
  6. Step 6: Final answer
    x = 24,772.33

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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.