Home / 28,869.05-39,803.26-22,071.50

Finding the Fourth Proportional to 28,869.05, 39,803.26 and 22,071.50

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Solution

The fourth proportional to 28,869.05, 39,803.26 and 22,071.50 is: 30,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.05 : 39,803.26 = 22,071.50 : x
  2. Step 2: Convert to fraction form
    28,869.05/39,803.26 = 22,071.50/x
  3. Step 3: Cross multiply
    28,869.05x = 39,803.26 × 22,071.50
  4. Step 4: Simplify right side
    28,869.05x = 878,517,398.89
  5. Step 5: Solve for x
    x = 878,517,398.89/28,869.05
  6. Step 6: Final answer
    x = 30,431.11

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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.