Home / 38,897.19-53,673.68-21,900.99

Finding the Fourth Proportional to 38,897.19, 53,673.68 and 21,900.99

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Solution

The fourth proportional to 38,897.19, 53,673.68 and 21,900.99 is: 30,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,897.19 : 53,673.68 = 21,900.99 : x
  2. Step 2: Convert to fraction form
    38,897.19/53,673.68 = 21,900.99/x
  3. Step 3: Cross multiply
    38,897.19x = 53,673.68 × 21,900.99
  4. Step 4: Simplify right side
    38,897.19x = 1,175,506,984.97
  5. Step 5: Solve for x
    x = 1,175,506,984.97/38,897.19
  6. Step 6: Final answer
    x = 30,220.87

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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.