Home / 20,923.62-28,875.24-11,492.16

Finding the Fourth Proportional to 20,923.62, 28,875.24 and 11,492.16

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Solution

The fourth proportional to 20,923.62, 28,875.24 and 11,492.16 is: 15,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.62 : 28,875.24 = 11,492.16 : x
  2. Step 2: Convert to fraction form
    20,923.62/28,875.24 = 11,492.16/x
  3. Step 3: Cross multiply
    20,923.62x = 28,875.24 × 11,492.16
  4. Step 4: Simplify right side
    20,923.62x = 331,838,878.12
  5. Step 5: Solve for x
    x = 331,838,878.12/20,923.62
  6. Step 6: Final answer
    x = 15,859.53

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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.