Home / 22,887.51-31,587.74-12,819.79

Finding the Fourth Proportional to 22,887.51, 31,587.74 and 12,819.79

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Solution

The fourth proportional to 22,887.51, 31,587.74 and 12,819.79 is: 17,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,887.51 : 31,587.74 = 12,819.79 : x
  2. Step 2: Convert to fraction form
    22,887.51/31,587.74 = 12,819.79/x
  3. Step 3: Cross multiply
    22,887.51x = 31,587.74 × 12,819.79
  4. Step 4: Simplify right side
    22,887.51x = 404,948,193.37
  5. Step 5: Solve for x
    x = 404,948,193.37/22,887.51
  6. Step 6: Final answer
    x = 17,692.98

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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.