Home / 21,357.48-29,471.52-11,925.84

Finding the Fourth Proportional to 21,357.48, 29,471.52 and 11,925.84

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Solution

The fourth proportional to 21,357.48, 29,471.52 and 11,925.84 is: 16,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.48 : 29,471.52 = 11,925.84 : x
  2. Step 2: Convert to fraction form
    21,357.48/29,471.52 = 11,925.84/x
  3. Step 3: Cross multiply
    21,357.48x = 29,471.52 × 11,925.84
  4. Step 4: Simplify right side
    21,357.48x = 351,472,632.08
  5. Step 5: Solve for x
    x = 351,472,632.08/21,357.48
  6. Step 6: Final answer
    x = 16,456.65

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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.