Home / 23,118.98-31,903.96-12,508.40

Finding the Fourth Proportional to 23,118.98, 31,903.96 and 12,508.40

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Solution

The fourth proportional to 23,118.98, 31,903.96 and 12,508.40 is: 17,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.98 : 31,903.96 = 12,508.40 : x
  2. Step 2: Convert to fraction form
    23,118.98/31,903.96 = 12,508.40/x
  3. Step 3: Cross multiply
    23,118.98x = 31,903.96 × 12,508.40
  4. Step 4: Simplify right side
    23,118.98x = 399,067,493.26
  5. Step 5: Solve for x
    x = 399,067,493.26/23,118.98
  6. Step 6: Final answer
    x = 17,261.47

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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.