Home / 20,509.70-30,766.23-5,718.74

Finding the Fourth Proportional to 20,509.70, 30,766.23 and 5,718.74

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Solution

The fourth proportional to 20,509.70, 30,766.23 and 5,718.74 is: 8,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.70 : 30,766.23 = 5,718.74 : x
  2. Step 2: Convert to fraction form
    20,509.70/30,766.23 = 5,718.74/x
  3. Step 3: Cross multiply
    20,509.70x = 30,766.23 × 5,718.74
  4. Step 4: Simplify right side
    20,509.70x = 175,943,916.32
  5. Step 5: Solve for x
    x = 175,943,916.32/20,509.70
  6. Step 6: Final answer
    x = 8,578.57

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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.