Home / 28,774.38-39,719.79-22,488.78

Finding the Fourth Proportional to 28,774.38, 39,719.79 and 22,488.78

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Solution

The fourth proportional to 28,774.38, 39,719.79 and 22,488.78 is: 31,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.38 : 39,719.79 = 22,488.78 : x
  2. Step 2: Convert to fraction form
    28,774.38/39,719.79 = 22,488.78/x
  3. Step 3: Cross multiply
    28,774.38x = 39,719.79 × 22,488.78
  4. Step 4: Simplify right side
    28,774.38x = 893,249,618.96
  5. Step 5: Solve for x
    x = 893,249,618.96/28,774.38
  6. Step 6: Final answer
    x = 31,043.23

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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.