Home / 23,058.56-31,818.44-12,985.40

Finding the Fourth Proportional to 23,058.56, 31,818.44 and 12,985.40

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Solution

The fourth proportional to 23,058.56, 31,818.44 and 12,985.40 is: 17,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,058.56 : 31,818.44 = 12,985.40 : x
  2. Step 2: Convert to fraction form
    23,058.56/31,818.44 = 12,985.40/x
  3. Step 3: Cross multiply
    23,058.56x = 31,818.44 × 12,985.40
  4. Step 4: Simplify right side
    23,058.56x = 413,175,170.78
  5. Step 5: Solve for x
    x = 413,175,170.78/23,058.56
  6. Step 6: Final answer
    x = 17,918.52

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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.