Home / 27,825.47-38,400.53-15,562.56

Finding the Fourth Proportional to 27,825.47, 38,400.53 and 15,562.56

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Solution

The fourth proportional to 27,825.47, 38,400.53 and 15,562.56 is: 21,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.47 : 38,400.53 = 15,562.56 : x
  2. Step 2: Convert to fraction form
    27,825.47/38,400.53 = 15,562.56/x
  3. Step 3: Cross multiply
    27,825.47x = 38,400.53 × 15,562.56
  4. Step 4: Simplify right side
    27,825.47x = 597,610,474.34
  5. Step 5: Solve for x
    x = 597,610,474.34/27,825.47
  6. Step 6: Final answer
    x = 21,477.10

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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.