Home / 38,199.16-52,718.82-21,432.28

Finding the Fourth Proportional to 38,199.16, 52,718.82 and 21,432.28

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Solution

The fourth proportional to 38,199.16, 52,718.82 and 21,432.28 is: 29,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,199.16 : 52,718.82 = 21,432.28 : x
  2. Step 2: Convert to fraction form
    38,199.16/52,718.82 = 21,432.28/x
  3. Step 3: Cross multiply
    38,199.16x = 52,718.82 × 21,432.28
  4. Step 4: Simplify right side
    38,199.16x = 1,129,884,511.51
  5. Step 5: Solve for x
    x = 1,129,884,511.51/38,199.16
  6. Step 6: Final answer
    x = 29,578.78

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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.