Home / 38,950.18-53,751.21-21,045.18

Finding the Fourth Proportional to 38,950.18, 53,751.21 and 21,045.18

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Solution

The fourth proportional to 38,950.18, 53,751.21 and 21,045.18 is: 29,042.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,950.18 : 53,751.21 = 21,045.18 : x
  2. Step 2: Convert to fraction form
    38,950.18/53,751.21 = 21,045.18/x
  3. Step 3: Cross multiply
    38,950.18x = 53,751.21 × 21,045.18
  4. Step 4: Simplify right side
    38,950.18x = 1,131,203,889.67
  5. Step 5: Solve for x
    x = 1,131,203,889.67/38,950.18
  6. Step 6: Final answer
    x = 29,042.33

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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.