Home / 23,070.43-31,836.81-12,998.89

Finding the Fourth Proportional to 23,070.43, 31,836.81 and 12,998.89

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Solution

The fourth proportional to 23,070.43, 31,836.81 and 12,998.89 is: 17,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,070.43 : 31,836.81 = 12,998.89 : x
  2. Step 2: Convert to fraction form
    23,070.43/31,836.81 = 12,998.89/x
  3. Step 3: Cross multiply
    23,070.43x = 31,836.81 × 12,998.89
  4. Step 4: Simplify right side
    23,070.43x = 413,843,191.14
  5. Step 5: Solve for x
    x = 413,843,191.14/23,070.43
  6. Step 6: Final answer
    x = 17,938.25

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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.