Home / 18,823.48-28,345.20-13,927.56

Finding the Fourth Proportional to 18,823.48, 28,345.20 and 13,927.56

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Solution

The fourth proportional to 18,823.48, 28,345.20 and 13,927.56 is: 20,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.48 : 28,345.20 = 13,927.56 : x
  2. Step 2: Convert to fraction form
    18,823.48/28,345.20 = 13,927.56/x
  3. Step 3: Cross multiply
    18,823.48x = 28,345.20 × 13,927.56
  4. Step 4: Simplify right side
    18,823.48x = 394,779,473.71
  5. Step 5: Solve for x
    x = 394,779,473.71/18,823.48
  6. Step 6: Final answer
    x = 20,972.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.