Home / 38,139.45-52,632.55-21,146.46

Finding the Fourth Proportional to 38,139.45, 52,632.55 and 21,146.46

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Solution

The fourth proportional to 38,139.45, 52,632.55 and 21,146.46 is: 29,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.45 : 52,632.55 = 21,146.46 : x
  2. Step 2: Convert to fraction form
    38,139.45/52,632.55 = 21,146.46/x
  3. Step 3: Cross multiply
    38,139.45x = 52,632.55 × 21,146.46
  4. Step 4: Simplify right side
    38,139.45x = 1,112,992,113.27
  5. Step 5: Solve for x
    x = 1,112,992,113.27/38,139.45
  6. Step 6: Final answer
    x = 29,182.18

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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.