Home / 23,358.78-34,988.36-18,897.30

Finding the Fourth Proportional to 23,358.78, 34,988.36 and 18,897.30

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Solution

The fourth proportional to 23,358.78, 34,988.36 and 18,897.30 is: 28,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,358.78 : 34,988.36 = 18,897.30 : x
  2. Step 2: Convert to fraction form
    23,358.78/34,988.36 = 18,897.30/x
  3. Step 3: Cross multiply
    23,358.78x = 34,988.36 × 18,897.30
  4. Step 4: Simplify right side
    23,358.78x = 661,185,440.94
  5. Step 5: Solve for x
    x = 661,185,440.94/23,358.78
  6. Step 6: Final answer
    x = 28,305.65

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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.