Home / 20,923.48-28,874.37-11,363.32

Finding the Fourth Proportional to 20,923.48, 28,874.37 and 11,363.32

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Solution

The fourth proportional to 20,923.48, 28,874.37 and 11,363.32 is: 15,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.48 : 28,874.37 = 11,363.32 : x
  2. Step 2: Convert to fraction form
    20,923.48/28,874.37 = 11,363.32/x
  3. Step 3: Cross multiply
    20,923.48x = 28,874.37 × 11,363.32
  4. Step 4: Simplify right side
    20,923.48x = 328,108,706.11
  5. Step 5: Solve for x
    x = 328,108,706.11/20,923.48
  6. Step 6: Final answer
    x = 15,681.36

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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.