Home / 19,856.40-29,777.23-5,813.56

Finding the Fourth Proportional to 19,856.40, 29,777.23 and 5,813.56

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Solution

The fourth proportional to 19,856.40, 29,777.23 and 5,813.56 is: 8,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.40 : 29,777.23 = 5,813.56 : x
  2. Step 2: Convert to fraction form
    19,856.40/29,777.23 = 5,813.56/x
  3. Step 3: Cross multiply
    19,856.40x = 29,777.23 × 5,813.56
  4. Step 4: Simplify right side
    19,856.40x = 173,111,713.24
  5. Step 5: Solve for x
    x = 173,111,713.24/19,856.40
  6. Step 6: Final answer
    x = 8,718.18

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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.