Home / 20,316.30-30,402.36-12,416.10

Finding the Fourth Proportional to 20,316.30, 30,402.36 and 12,416.10

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Solution

The fourth proportional to 20,316.30, 30,402.36 and 12,416.10 is: 18,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.30 : 30,402.36 = 12,416.10 : x
  2. Step 2: Convert to fraction form
    20,316.30/30,402.36 = 12,416.10/x
  3. Step 3: Cross multiply
    20,316.30x = 30,402.36 × 12,416.10
  4. Step 4: Simplify right side
    20,316.30x = 377,478,742.00
  5. Step 5: Solve for x
    x = 377,478,742.00/20,316.30
  6. Step 6: Final answer
    x = 18,580.09

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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.