Home / 19,948.86-27,540-15,462.54

Finding the Fourth Proportional to 19,948.86, 27,540 and 15,462.54

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Solution

The fourth proportional to 19,948.86, 27,540 and 15,462.54 is: 21,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,948.86 : 27,540 = 15,462.54 : x
  2. Step 2: Convert to fraction form
    19,948.86/27,540 = 15,462.54/x
  3. Step 3: Cross multiply
    19,948.86x = 27,540 × 15,462.54
  4. Step 4: Simplify right side
    19,948.86x = 425,838,351.60
  5. Step 5: Solve for x
    x = 425,838,351.60/19,948.86
  6. Step 6: Final answer
    x = 21,346.50

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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.