Home / 20,645.60-30,968.48-5,854.08

Finding the Fourth Proportional to 20,645.60, 30,968.48 and 5,854.08

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Solution

The fourth proportional to 20,645.60, 30,968.48 and 5,854.08 is: 8,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.60 : 30,968.48 = 5,854.08 : x
  2. Step 2: Convert to fraction form
    20,645.60/30,968.48 = 5,854.08/x
  3. Step 3: Cross multiply
    20,645.60x = 30,968.48 × 5,854.08
  4. Step 4: Simplify right side
    20,645.60x = 181,291,959.40
  5. Step 5: Solve for x
    x = 181,291,959.40/20,645.60
  6. Step 6: Final answer
    x = 8,781.14

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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.