Home / 23,213.51-31,962.91-18,129.56

Finding the Fourth Proportional to 23,213.51, 31,962.91 and 18,129.56

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Solution

The fourth proportional to 23,213.51, 31,962.91 and 18,129.56 is: 24,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,213.51 : 31,962.91 = 18,129.56 : x
  2. Step 2: Convert to fraction form
    23,213.51/31,962.91 = 18,129.56/x
  3. Step 3: Cross multiply
    23,213.51x = 31,962.91 × 18,129.56
  4. Step 4: Simplify right side
    23,213.51x = 579,473,289.48
  5. Step 5: Solve for x
    x = 579,473,289.48/23,213.51
  6. Step 6: Final answer
    x = 24,962.77

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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.