Home / 30,865.32-42,572.46-18,934.44

Finding the Fourth Proportional to 30,865.32, 42,572.46 and 18,934.44

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Solution

The fourth proportional to 30,865.32, 42,572.46 and 18,934.44 is: 26,116.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.32 : 42,572.46 = 18,934.44 : x
  2. Step 2: Convert to fraction form
    30,865.32/42,572.46 = 18,934.44/x
  3. Step 3: Cross multiply
    30,865.32x = 42,572.46 × 18,934.44
  4. Step 4: Simplify right side
    30,865.32x = 806,085,689.52
  5. Step 5: Solve for x
    x = 806,085,689.52/30,865.32
  6. Step 6: Final answer
    x = 26,116.23

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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.