Home / 38,907.06-53,701.35-22,149.78

Finding the Fourth Proportional to 38,907.06, 53,701.35 and 22,149.78

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Solution

The fourth proportional to 38,907.06, 53,701.35 and 22,149.78 is: 30,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.06 : 53,701.35 = 22,149.78 : x
  2. Step 2: Convert to fraction form
    38,907.06/53,701.35 = 22,149.78/x
  3. Step 3: Cross multiply
    38,907.06x = 53,701.35 × 22,149.78
  4. Step 4: Simplify right side
    38,907.06x = 1,189,473,088.20
  5. Step 5: Solve for x
    x = 1,189,473,088.20/38,907.06
  6. Step 6: Final answer
    x = 30,572.17

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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.