Home / 20,575.96-30,840.60-9,459.68

Finding the Fourth Proportional to 20,575.96, 30,840.60 and 9,459.68

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Solution

The fourth proportional to 20,575.96, 30,840.60 and 9,459.68 is: 14,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.96 : 30,840.60 = 9,459.68 : x
  2. Step 2: Convert to fraction form
    20,575.96/30,840.60 = 9,459.68/x
  3. Step 3: Cross multiply
    20,575.96x = 30,840.60 × 9,459.68
  4. Step 4: Simplify right side
    20,575.96x = 291,742,207.01
  5. Step 5: Solve for x
    x = 291,742,207.01/20,575.96
  6. Step 6: Final answer
    x = 14,178.79

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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.