Home / 38,928.48-53,718.08-21,927.30

Finding the Fourth Proportional to 38,928.48, 53,718.08 and 21,927.30

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Solution

The fourth proportional to 38,928.48, 53,718.08 and 21,927.30 is: 30,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928.48 : 53,718.08 = 21,927.30 : x
  2. Step 2: Convert to fraction form
    38,928.48/53,718.08 = 21,927.30/x
  3. Step 3: Cross multiply
    38,928.48x = 53,718.08 × 21,927.30
  4. Step 4: Simplify right side
    38,928.48x = 1,177,892,345.95
  5. Step 5: Solve for x
    x = 1,177,892,345.95/38,928.48
  6. Step 6: Final answer
    x = 30,257.86

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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.