Home / 20,574.09-30,879.33-10,585.86

Finding the Fourth Proportional to 20,574.09, 30,879.33 and 10,585.86

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Solution

The fourth proportional to 20,574.09, 30,879.33 and 10,585.86 is: 15,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.09 : 30,879.33 = 10,585.86 : x
  2. Step 2: Convert to fraction form
    20,574.09/30,879.33 = 10,585.86/x
  3. Step 3: Cross multiply
    20,574.09x = 30,879.33 × 10,585.86
  4. Step 4: Simplify right side
    20,574.09x = 326,884,264.27
  5. Step 5: Solve for x
    x = 326,884,264.27/20,574.09
  6. Step 6: Final answer
    x = 15,888.15

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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.