Home / 22,685.00-31,289.09-15,127.56

Finding the Fourth Proportional to 22,685.00, 31,289.09 and 15,127.56

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Solution

The fourth proportional to 22,685.00, 31,289.09 and 15,127.56 is: 20,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.00 : 31,289.09 = 15,127.56 : x
  2. Step 2: Convert to fraction form
    22,685.00/31,289.09 = 15,127.56/x
  3. Step 3: Cross multiply
    22,685.00x = 31,289.09 × 15,127.56
  4. Step 4: Simplify right side
    22,685.00x = 473,327,510.68
  5. Step 5: Solve for x
    x = 473,327,510.68/22,685.00
  6. Step 6: Final answer
    x = 20,865.22

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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.