Home / 28,575.92-39,434.85-15,829.62

Finding the Fourth Proportional to 28,575.92, 39,434.85 and 15,829.62

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Solution

The fourth proportional to 28,575.92, 39,434.85 and 15,829.62 is: 21,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.92 : 39,434.85 = 15,829.62 : x
  2. Step 2: Convert to fraction form
    28,575.92/39,434.85 = 15,829.62/x
  3. Step 3: Cross multiply
    28,575.92x = 39,434.85 × 15,829.62
  4. Step 4: Simplify right side
    28,575.92x = 624,238,690.26
  5. Step 5: Solve for x
    x = 624,238,690.26/28,575.92
  6. Step 6: Final answer
    x = 21,844.92

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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.