Home / 27,699.28-38,224.78-15,124

Finding the Fourth Proportional to 27,699.28, 38,224.78 and 15,124

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Solution

The fourth proportional to 27,699.28, 38,224.78 and 15,124 is: 20,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.28 : 38,224.78 = 15,124 : x
  2. Step 2: Convert to fraction form
    27,699.28/38,224.78 = 15,124/x
  3. Step 3: Cross multiply
    27,699.28x = 38,224.78 × 15,124
  4. Step 4: Simplify right side
    27,699.28x = 578,111,572.72
  5. Step 5: Solve for x
    x = 578,111,572.72/27,699.28
  6. Step 6: Final answer
    x = 20,871.00

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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.