Home / 28,200.15-42,305.09-11,569.23

Finding the Fourth Proportional to 28,200.15, 42,305.09 and 11,569.23

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Solution

The fourth proportional to 28,200.15, 42,305.09 and 11,569.23 is: 17,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.15 : 42,305.09 = 11,569.23 : x
  2. Step 2: Convert to fraction form
    28,200.15/42,305.09 = 11,569.23/x
  3. Step 3: Cross multiply
    28,200.15x = 42,305.09 × 11,569.23
  4. Step 4: Simplify right side
    28,200.15x = 489,437,258.53
  5. Step 5: Solve for x
    x = 489,437,258.53/28,200.15
  6. Step 6: Final answer
    x = 17,355.84

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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.