Home / 28,690.11-39,592.26-15,944.45

Finding the Fourth Proportional to 28,690.11, 39,592.26 and 15,944.45

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Solution

The fourth proportional to 28,690.11, 39,592.26 and 15,944.45 is: 22,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.11 : 39,592.26 = 15,944.45 : x
  2. Step 2: Convert to fraction form
    28,690.11/39,592.26 = 15,944.45/x
  3. Step 3: Cross multiply
    28,690.11x = 39,592.26 × 15,944.45
  4. Step 4: Simplify right side
    28,690.11x = 631,276,612.00
  5. Step 5: Solve for x
    x = 631,276,612.00/28,690.11
  6. Step 6: Final answer
    x = 22,003.28

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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.