Home / 38,668.12-53,360.22-21,901.24

Finding the Fourth Proportional to 38,668.12, 53,360.22 and 21,901.24

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Solution

The fourth proportional to 38,668.12, 53,360.22 and 21,901.24 is: 30,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.12 : 53,360.22 = 21,901.24 : x
  2. Step 2: Convert to fraction form
    38,668.12/53,360.22 = 21,901.24/x
  3. Step 3: Cross multiply
    38,668.12x = 53,360.22 × 21,901.24
  4. Step 4: Simplify right side
    38,668.12x = 1,168,654,984.67
  5. Step 5: Solve for x
    x = 1,168,654,984.67/38,668.12
  6. Step 6: Final answer
    x = 30,222.70

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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.