Home / 28,566.57-42,859.41-13,773.75

Finding the Fourth Proportional to 28,566.57, 42,859.41 and 13,773.75

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Solution

The fourth proportional to 28,566.57, 42,859.41 and 13,773.75 is: 20,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.57 : 42,859.41 = 13,773.75 : x
  2. Step 2: Convert to fraction form
    28,566.57/42,859.41 = 13,773.75/x
  3. Step 3: Cross multiply
    28,566.57x = 42,859.41 × 13,773.75
  4. Step 4: Simplify right side
    28,566.57x = 590,334,798.49
  5. Step 5: Solve for x
    x = 590,334,798.49/28,566.57
  6. Step 6: Final answer
    x = 20,665.23

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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.