Home / 28,389.06-42,509.73-15,176.85

Finding the Fourth Proportional to 28,389.06, 42,509.73 and 15,176.85

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Solution

The fourth proportional to 28,389.06, 42,509.73 and 15,176.85 is: 22,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.06 : 42,509.73 = 15,176.85 : x
  2. Step 2: Convert to fraction form
    28,389.06/42,509.73 = 15,176.85/x
  3. Step 3: Cross multiply
    28,389.06x = 42,509.73 × 15,176.85
  4. Step 4: Simplify right side
    28,389.06x = 645,163,795.75
  5. Step 5: Solve for x
    x = 645,163,795.75/28,389.06
  6. Step 6: Final answer
    x = 22,725.79

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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.