Home / 38,759.80-53,487.84-21,764.18

Finding the Fourth Proportional to 38,759.80, 53,487.84 and 21,764.18

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Solution

The fourth proportional to 38,759.80, 53,487.84 and 21,764.18 is: 30,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759.80 : 53,487.84 = 21,764.18 : x
  2. Step 2: Convert to fraction form
    38,759.80/53,487.84 = 21,764.18/x
  3. Step 3: Cross multiply
    38,759.80x = 53,487.84 × 21,764.18
  4. Step 4: Simplify right side
    38,759.80x = 1,164,118,710.13
  5. Step 5: Solve for x
    x = 1,164,118,710.13/38,759.80
  6. Step 6: Final answer
    x = 30,034.18

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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.