Home / 38,631.74-53,302.66-21,864.74

Finding the Fourth Proportional to 38,631.74, 53,302.66 and 21,864.74

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Solution

The fourth proportional to 38,631.74, 53,302.66 and 21,864.74 is: 30,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.74 : 53,302.66 = 21,864.74 : x
  2. Step 2: Convert to fraction form
    38,631.74/53,302.66 = 21,864.74/x
  3. Step 3: Cross multiply
    38,631.74x = 53,302.66 × 21,864.74
  4. Step 4: Simplify right side
    38,631.74x = 1,165,448,453.70
  5. Step 5: Solve for x
    x = 1,165,448,453.70/38,631.74
  6. Step 6: Final answer
    x = 30,168.16

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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.