Home / 28,806.79-43,211.55-13,998.07

Finding the Fourth Proportional to 28,806.79, 43,211.55 and 13,998.07

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Solution

The fourth proportional to 28,806.79, 43,211.55 and 13,998.07 is: 20,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.79 : 43,211.55 = 13,998.07 : x
  2. Step 2: Convert to fraction form
    28,806.79/43,211.55 = 13,998.07/x
  3. Step 3: Cross multiply
    28,806.79x = 43,211.55 × 13,998.07
  4. Step 4: Simplify right side
    28,806.79x = 604,878,125.78
  5. Step 5: Solve for x
    x = 604,878,125.78/28,806.79
  6. Step 6: Final answer
    x = 20,997.76

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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.