Home / 20,133.50-30,167.34-10,259.19

Finding the Fourth Proportional to 20,133.50, 30,167.34 and 10,259.19

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Solution

The fourth proportional to 20,133.50, 30,167.34 and 10,259.19 is: 15,372.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.50 : 30,167.34 = 10,259.19 : x
  2. Step 2: Convert to fraction form
    20,133.50/30,167.34 = 10,259.19/x
  3. Step 3: Cross multiply
    20,133.50x = 30,167.34 × 10,259.19
  4. Step 4: Simplify right side
    20,133.50x = 309,492,434.38
  5. Step 5: Solve for x
    x = 309,492,434.38/20,133.50
  6. Step 6: Final answer
    x = 15,372.02

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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.