Home / 38,920.10-53,711.06-23,018.18

Finding the Fourth Proportional to 38,920.10, 53,711.06 and 23,018.18

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Solution

The fourth proportional to 38,920.10, 53,711.06 and 23,018.18 is: 31,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,920.10 : 53,711.06 = 23,018.18 : x
  2. Step 2: Convert to fraction form
    38,920.10/53,711.06 = 23,018.18/x
  3. Step 3: Cross multiply
    38,920.10x = 53,711.06 × 23,018.18
  4. Step 4: Simplify right side
    38,920.10x = 1,236,330,847.07
  5. Step 5: Solve for x
    x = 1,236,330,847.07/38,920.10
  6. Step 6: Final answer
    x = 31,765.87

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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.