Home / 38,034.72-52,488-21,040.20

Finding the Fourth Proportional to 38,034.72, 52,488 and 21,040.20

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Solution

The fourth proportional to 38,034.72, 52,488 and 21,040.20 is: 29,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,034.72 : 52,488 = 21,040.20 : x
  2. Step 2: Convert to fraction form
    38,034.72/52,488 = 21,040.20/x
  3. Step 3: Cross multiply
    38,034.72x = 52,488 × 21,040.20
  4. Step 4: Simplify right side
    38,034.72x = 1,104,358,017.60
  5. Step 5: Solve for x
    x = 1,104,358,017.60/38,034.72
  6. Step 6: Final answer
    x = 29,035.52

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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.