Home / 38,521.08-53,158.44-21,525.57

Finding the Fourth Proportional to 38,521.08, 53,158.44 and 21,525.57

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Solution

The fourth proportional to 38,521.08, 53,158.44 and 21,525.57 is: 29,704.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521.08 : 53,158.44 = 21,525.57 : x
  2. Step 2: Convert to fraction form
    38,521.08/53,158.44 = 21,525.57/x
  3. Step 3: Cross multiply
    38,521.08x = 53,158.44 × 21,525.57
  4. Step 4: Simplify right side
    38,521.08x = 1,144,265,721.31
  5. Step 5: Solve for x
    x = 1,144,265,721.31/38,521.08
  6. Step 6: Final answer
    x = 29,704.92

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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.