Home / 21,245.24-29,300.99-18,856.95

Finding the Fourth Proportional to 21,245.24, 29,300.99 and 18,856.95

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Solution

The fourth proportional to 21,245.24, 29,300.99 and 18,856.95 is: 26,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.24 : 29,300.99 = 18,856.95 : x
  2. Step 2: Convert to fraction form
    21,245.24/29,300.99 = 18,856.95/x
  3. Step 3: Cross multiply
    21,245.24x = 29,300.99 × 18,856.95
  4. Step 4: Simplify right side
    21,245.24x = 552,527,209.10
  5. Step 5: Solve for x
    x = 552,527,209.10/21,245.24
  6. Step 6: Final answer
    x = 26,007.11

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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.