Home / 38,920.64-53,710.80-22,154.72

Finding the Fourth Proportional to 38,920.64, 53,710.80 and 22,154.72

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Solution

The fourth proportional to 38,920.64, 53,710.80 and 22,154.72 is: 30,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,920.64 : 53,710.80 = 22,154.72 : x
  2. Step 2: Convert to fraction form
    38,920.64/53,710.80 = 22,154.72/x
  3. Step 3: Cross multiply
    38,920.64x = 53,710.80 × 22,154.72
  4. Step 4: Simplify right side
    38,920.64x = 1,189,947,734.98
  5. Step 5: Solve for x
    x = 1,189,947,734.98/38,920.64
  6. Step 6: Final answer
    x = 30,573.69

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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.