Home / 28,548.92-42,715.86-19,800.76

Finding the Fourth Proportional to 28,548.92, 42,715.86 and 19,800.76

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Solution

The fourth proportional to 28,548.92, 42,715.86 and 19,800.76 is: 29,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.92 : 42,715.86 = 19,800.76 : x
  2. Step 2: Convert to fraction form
    28,548.92/42,715.86 = 19,800.76/x
  3. Step 3: Cross multiply
    28,548.92x = 42,715.86 × 19,800.76
  4. Step 4: Simplify right side
    28,548.92x = 845,806,492.05
  5. Step 5: Solve for x
    x = 845,806,492.05/28,548.92
  6. Step 6: Final answer
    x = 29,626.57

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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.