Home / 18,824.10-28,240.95-13,288.23

Finding the Fourth Proportional to 18,824.10, 28,240.95 and 13,288.23

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Solution

The fourth proportional to 18,824.10, 28,240.95 and 13,288.23 is: 19,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.10 : 28,240.95 = 13,288.23 : x
  2. Step 2: Convert to fraction form
    18,824.10/28,240.95 = 13,288.23/x
  3. Step 3: Cross multiply
    18,824.10x = 28,240.95 × 13,288.23
  4. Step 4: Simplify right side
    18,824.10x = 375,272,239.02
  5. Step 5: Solve for x
    x = 375,272,239.02/18,824.10
  6. Step 6: Final answer
    x = 19,935.73

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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.