Home / 38,608.04-53,275.20-21,611.18

Finding the Fourth Proportional to 38,608.04, 53,275.20 and 21,611.18

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Solution

The fourth proportional to 38,608.04, 53,275.20 and 21,611.18 is: 29,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,608.04 : 53,275.20 = 21,611.18 : x
  2. Step 2: Convert to fraction form
    38,608.04/53,275.20 = 21,611.18/x
  3. Step 3: Cross multiply
    38,608.04x = 53,275.20 × 21,611.18
  4. Step 4: Simplify right side
    38,608.04x = 1,151,339,936.74
  5. Step 5: Solve for x
    x = 1,151,339,936.74/38,608.04
  6. Step 6: Final answer
    x = 29,821.25

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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.