Home / 38,521.12-53,161.60-21,525.44

Finding the Fourth Proportional to 38,521.12, 53,161.60 and 21,525.44

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Solution

The fourth proportional to 38,521.12, 53,161.60 and 21,525.44 is: 29,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521.12 : 53,161.60 = 21,525.44 : x
  2. Step 2: Convert to fraction form
    38,521.12/53,161.60 = 21,525.44/x
  3. Step 3: Cross multiply
    38,521.12x = 53,161.60 × 21,525.44
  4. Step 4: Simplify right side
    38,521.12x = 1,144,326,831.10
  5. Step 5: Solve for x
    x = 1,144,326,831.10/38,521.12
  6. Step 6: Final answer
    x = 29,706.48

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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.