Home / 20,287.48-30,257.72-19,582.08

Finding the Fourth Proportional to 20,287.48, 30,257.72 and 19,582.08

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Solution

The fourth proportional to 20,287.48, 30,257.72 and 19,582.08 is: 29,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.48 : 30,257.72 = 19,582.08 : x
  2. Step 2: Convert to fraction form
    20,287.48/30,257.72 = 19,582.08/x
  3. Step 3: Cross multiply
    20,287.48x = 30,257.72 × 19,582.08
  4. Step 4: Simplify right side
    20,287.48x = 592,509,093.66
  5. Step 5: Solve for x
    x = 592,509,093.66/20,287.48
  6. Step 6: Final answer
    x = 29,205.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.