Home / 30,281.60-45,380.75-15,459.27

Finding the Fourth Proportional to 30,281.60, 45,380.75 and 15,459.27

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Solution

The fourth proportional to 30,281.60, 45,380.75 and 15,459.27 is: 23,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.60 : 45,380.75 = 15,459.27 : x
  2. Step 2: Convert to fraction form
    30,281.60/45,380.75 = 15,459.27/x
  3. Step 3: Cross multiply
    30,281.60x = 45,380.75 × 15,459.27
  4. Step 4: Simplify right side
    30,281.60x = 701,553,189.76
  5. Step 5: Solve for x
    x = 701,553,189.76/30,281.60
  6. Step 6: Final answer
    x = 23,167.64

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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.