Home / 35,909.60-53,864.40-20,357.60

Finding the Fourth Proportional to 35,909.60, 53,864.40 and 20,357.60

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Solution

The fourth proportional to 35,909.60, 53,864.40 and 20,357.60 is: 30,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,909.60 : 53,864.40 = 20,357.60 : x
  2. Step 2: Convert to fraction form
    35,909.60/53,864.40 = 20,357.60/x
  3. Step 3: Cross multiply
    35,909.60x = 53,864.40 × 20,357.60
  4. Step 4: Simplify right side
    35,909.60x = 1,096,549,909.44
  5. Step 5: Solve for x
    x = 1,096,549,909.44/35,909.60
  6. Step 6: Final answer
    x = 30,536.40

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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.