Home / 38,529.95-53,171.14-21,534.18

Finding the Fourth Proportional to 38,529.95, 53,171.14 and 21,534.18

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Solution

The fourth proportional to 38,529.95, 53,171.14 and 21,534.18 is: 29,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,529.95 : 53,171.14 = 21,534.18 : x
  2. Step 2: Convert to fraction form
    38,529.95/53,171.14 = 21,534.18/x
  3. Step 3: Cross multiply
    38,529.95x = 53,171.14 × 21,534.18
  4. Step 4: Simplify right side
    38,529.95x = 1,144,996,899.57
  5. Step 5: Solve for x
    x = 1,144,996,899.57/38,529.95
  6. Step 6: Final answer
    x = 29,717.06

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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.