Home / 23,128.07-31,887.68-18,874.76

Finding the Fourth Proportional to 23,128.07, 31,887.68 and 18,874.76

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Solution

The fourth proportional to 23,128.07, 31,887.68 and 18,874.76 is: 26,023.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.07 : 31,887.68 = 18,874.76 : x
  2. Step 2: Convert to fraction form
    23,128.07/31,887.68 = 18,874.76/x
  3. Step 3: Cross multiply
    23,128.07x = 31,887.68 × 18,874.76
  4. Step 4: Simplify right side
    23,128.07x = 601,872,053.14
  5. Step 5: Solve for x
    x = 601,872,053.14/23,128.07
  6. Step 6: Final answer
    x = 26,023.45

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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.