Home / 22,659.78-31,267.03-12,587.30

Finding the Fourth Proportional to 22,659.78, 31,267.03 and 12,587.30

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Solution

The fourth proportional to 22,659.78, 31,267.03 and 12,587.30 is: 17,368.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.78 : 31,267.03 = 12,587.30 : x
  2. Step 2: Convert to fraction form
    22,659.78/31,267.03 = 12,587.30/x
  3. Step 3: Cross multiply
    22,659.78x = 31,267.03 × 12,587.30
  4. Step 4: Simplify right side
    22,659.78x = 393,567,267.45
  5. Step 5: Solve for x
    x = 393,567,267.45/22,659.78
  6. Step 6: Final answer
    x = 17,368.54

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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.