Home / 22,648.80-31,255.65-12,577.89

Finding the Fourth Proportional to 22,648.80, 31,255.65 and 12,577.89

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Solution

The fourth proportional to 22,648.80, 31,255.65 and 12,577.89 is: 17,357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,648.80 : 31,255.65 = 12,577.89 : x
  2. Step 2: Convert to fraction form
    22,648.80/31,255.65 = 12,577.89/x
  3. Step 3: Cross multiply
    22,648.80x = 31,255.65 × 12,577.89
  4. Step 4: Simplify right side
    22,648.80x = 393,130,127.58
  5. Step 5: Solve for x
    x = 393,130,127.58/22,648.80
  6. Step 6: Final answer
    x = 17,357.66

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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.