Home / 20,555.23-30,772.77-18,585.46

Finding the Fourth Proportional to 20,555.23, 30,772.77 and 18,585.46

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Solution

The fourth proportional to 20,555.23, 30,772.77 and 18,585.46 is: 27,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.23 : 30,772.77 = 18,585.46 : x
  2. Step 2: Convert to fraction form
    20,555.23/30,772.77 = 18,585.46/x
  3. Step 3: Cross multiply
    20,555.23x = 30,772.77 × 18,585.46
  4. Step 4: Simplify right side
    20,555.23x = 571,926,085.92
  5. Step 5: Solve for x
    x = 571,926,085.92/20,555.23
  6. Step 6: Final answer
    x = 27,823.87

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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.