Home / 18,874.48-28,315.12-15,395.32

Finding the Fourth Proportional to 18,874.48, 28,315.12 and 15,395.32

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Solution

The fourth proportional to 18,874.48, 28,315.12 and 15,395.32 is: 23,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.48 : 28,315.12 = 15,395.32 : x
  2. Step 2: Convert to fraction form
    18,874.48/28,315.12 = 15,395.32/x
  3. Step 3: Cross multiply
    18,874.48x = 28,315.12 × 15,395.32
  4. Step 4: Simplify right side
    18,874.48x = 435,920,333.24
  5. Step 5: Solve for x
    x = 435,920,333.24/18,874.48
  6. Step 6: Final answer
    x = 23,095.75

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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.