Home / 21,590.48-32,335.54-20,842.18

Finding the Fourth Proportional to 21,590.48, 32,335.54 and 20,842.18

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Solution

The fourth proportional to 21,590.48, 32,335.54 and 20,842.18 is: 31,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.48 : 32,335.54 = 20,842.18 : x
  2. Step 2: Convert to fraction form
    21,590.48/32,335.54 = 20,842.18/x
  3. Step 3: Cross multiply
    21,590.48x = 32,335.54 × 20,842.18
  4. Step 4: Simplify right side
    21,590.48x = 673,943,012.13
  5. Step 5: Solve for x
    x = 673,943,012.13/21,590.48
  6. Step 6: Final answer
    x = 31,214.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.