Home / 20,423.74-30,608.34-10,916.57

Finding the Fourth Proportional to 20,423.74, 30,608.34 and 10,916.57

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Solution

The fourth proportional to 20,423.74, 30,608.34 and 10,916.57 is: 16,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.74 : 30,608.34 = 10,916.57 : x
  2. Step 2: Convert to fraction form
    20,423.74/30,608.34 = 10,916.57/x
  3. Step 3: Cross multiply
    20,423.74x = 30,608.34 × 10,916.57
  4. Step 4: Simplify right side
    20,423.74x = 334,138,086.19
  5. Step 5: Solve for x
    x = 334,138,086.19/20,423.74
  6. Step 6: Final answer
    x = 16,360.28

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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.