Home / 38,218.19-52,739.35-21,223.52

Finding the Fourth Proportional to 38,218.19, 52,739.35 and 21,223.52

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Solution

The fourth proportional to 38,218.19, 52,739.35 and 21,223.52 is: 29,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.19 : 52,739.35 = 21,223.52 : x
  2. Step 2: Convert to fraction form
    38,218.19/52,739.35 = 21,223.52/x
  3. Step 3: Cross multiply
    38,218.19x = 52,739.35 × 21,223.52
  4. Step 4: Simplify right side
    38,218.19x = 1,119,314,728.30
  5. Step 5: Solve for x
    x = 1,119,314,728.30/38,218.19
  6. Step 6: Final answer
    x = 29,287.48

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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.