Home / 38,570.10-53,231.67-21,575.29

Finding the Fourth Proportional to 38,570.10, 53,231.67 and 21,575.29

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Solution

The fourth proportional to 38,570.10, 53,231.67 and 21,575.29 is: 29,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.10 : 53,231.67 = 21,575.29 : x
  2. Step 2: Convert to fraction form
    38,570.10/53,231.67 = 21,575.29/x
  3. Step 3: Cross multiply
    38,570.10x = 53,231.67 × 21,575.29
  4. Step 4: Simplify right side
    38,570.10x = 1,148,488,717.43
  5. Step 5: Solve for x
    x = 1,148,488,717.43/38,570.10
  6. Step 6: Final answer
    x = 29,776.66

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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.