Home / 28,515.96-42,783.24-13,726.08

Finding the Fourth Proportional to 28,515.96, 42,783.24 and 13,726.08

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Solution

The fourth proportional to 28,515.96, 42,783.24 and 13,726.08 is: 20,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.96 : 42,783.24 = 13,726.08 : x
  2. Step 2: Convert to fraction form
    28,515.96/42,783.24 = 13,726.08/x
  3. Step 3: Cross multiply
    28,515.96x = 42,783.24 × 13,726.08
  4. Step 4: Simplify right side
    28,515.96x = 587,246,174.90
  5. Step 5: Solve for x
    x = 587,246,174.90/28,515.96
  6. Step 6: Final answer
    x = 20,593.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.