Home / 23,123.52-31,910.36-12,513.16

Finding the Fourth Proportional to 23,123.52, 31,910.36 and 12,513.16

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Solution

The fourth proportional to 23,123.52, 31,910.36 and 12,513.16 is: 17,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123.52 : 31,910.36 = 12,513.16 : x
  2. Step 2: Convert to fraction form
    23,123.52/31,910.36 = 12,513.16/x
  3. Step 3: Cross multiply
    23,123.52x = 31,910.36 × 12,513.16
  4. Step 4: Simplify right side
    23,123.52x = 399,299,440.34
  5. Step 5: Solve for x
    x = 399,299,440.34/23,123.52
  6. Step 6: Final answer
    x = 17,268.11

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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.