Home / 28,944.64-39,948.80-17,772.80

Finding the Fourth Proportional to 28,944.64, 39,948.80 and 17,772.80

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Solution

The fourth proportional to 28,944.64, 39,948.80 and 17,772.80 is: 24,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,944.64 : 39,948.80 = 17,772.80 : x
  2. Step 2: Convert to fraction form
    28,944.64/39,948.80 = 17,772.80/x
  3. Step 3: Cross multiply
    28,944.64x = 39,948.80 × 17,772.80
  4. Step 4: Simplify right side
    28,944.64x = 710,002,032.64
  5. Step 5: Solve for x
    x = 710,002,032.64/28,944.64
  6. Step 6: Final answer
    x = 24,529.65

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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.