Home / 23,142.51-31,936.43-13,070.92

Finding the Fourth Proportional to 23,142.51, 31,936.43 and 13,070.92

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Solution

The fourth proportional to 23,142.51, 31,936.43 and 13,070.92 is: 18,037.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,142.51 : 31,936.43 = 13,070.92 : x
  2. Step 2: Convert to fraction form
    23,142.51/31,936.43 = 13,070.92/x
  3. Step 3: Cross multiply
    23,142.51x = 31,936.43 × 13,070.92
  4. Step 4: Simplify right side
    23,142.51x = 417,438,460.81
  5. Step 5: Solve for x
    x = 417,438,460.81/23,142.51
  6. Step 6: Final answer
    x = 18,037.73

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Double scale
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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.