Home / 19,823.55-27,355.14-10,869.20

Finding the Fourth Proportional to 19,823.55, 27,355.14 and 10,869.20

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Solution

The fourth proportional to 19,823.55, 27,355.14 and 10,869.20 is: 14,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.55 : 27,355.14 = 10,869.20 : x
  2. Step 2: Convert to fraction form
    19,823.55/27,355.14 = 10,869.20/x
  3. Step 3: Cross multiply
    19,823.55x = 27,355.14 × 10,869.20
  4. Step 4: Simplify right side
    19,823.55x = 297,328,350.91
  5. Step 5: Solve for x
    x = 297,328,350.91/19,823.55
  6. Step 6: Final answer
    x = 14,998.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.