Home / 28,416.09-42,585.56-15,085.72

Finding the Fourth Proportional to 28,416.09, 42,585.56 and 15,085.72

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Solution

The fourth proportional to 28,416.09, 42,585.56 and 15,085.72 is: 22,608.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.09 : 42,585.56 = 15,085.72 : x
  2. Step 2: Convert to fraction form
    28,416.09/42,585.56 = 15,085.72/x
  3. Step 3: Cross multiply
    28,416.09x = 42,585.56 × 15,085.72
  4. Step 4: Simplify right side
    28,416.09x = 642,433,545.85
  5. Step 5: Solve for x
    x = 642,433,545.85/28,416.09
  6. Step 6: Final answer
    x = 22,608.09

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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.