Home / 20,566.41-30,865.83-10,570.76

Finding the Fourth Proportional to 20,566.41, 30,865.83 and 10,570.76

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Solution

The fourth proportional to 20,566.41, 30,865.83 and 10,570.76 is: 15,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.41 : 30,865.83 = 10,570.76 : x
  2. Step 2: Convert to fraction form
    20,566.41/30,865.83 = 10,570.76/x
  3. Step 3: Cross multiply
    20,566.41x = 30,865.83 × 10,570.76
  4. Step 4: Simplify right side
    20,566.41x = 326,275,281.13
  5. Step 5: Solve for x
    x = 326,275,281.13/20,566.41
  6. Step 6: Final answer
    x = 15,864.47

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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.