Home / 38,689.76-53,392.08-22,779.20

Finding the Fourth Proportional to 38,689.76, 53,392.08 and 22,779.20

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Solution

The fourth proportional to 38,689.76, 53,392.08 and 22,779.20 is: 31,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.76 : 53,392.08 = 22,779.20 : x
  2. Step 2: Convert to fraction form
    38,689.76/53,392.08 = 22,779.20/x
  3. Step 3: Cross multiply
    38,689.76x = 53,392.08 × 22,779.20
  4. Step 4: Simplify right side
    38,689.76x = 1,216,228,868.74
  5. Step 5: Solve for x
    x = 1,216,228,868.74/38,689.76
  6. Step 6: Final answer
    x = 31,435.42

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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.