Home / 38,921.19-53,806.68-38,565.78

Finding the Fourth Proportional to 38,921.19, 53,806.68 and 38,565.78

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Solution

The fourth proportional to 38,921.19, 53,806.68 and 38,565.78 is: 53,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,921.19 : 53,806.68 = 38,565.78 : x
  2. Step 2: Convert to fraction form
    38,921.19/53,806.68 = 38,565.78/x
  3. Step 3: Cross multiply
    38,921.19x = 53,806.68 × 38,565.78
  4. Step 4: Simplify right side
    38,921.19x = 2,075,096,583.41
  5. Step 5: Solve for x
    x = 2,075,096,583.41/38,921.19
  6. Step 6: Final answer
    x = 53,315.34

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Double scale
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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.