Home / 19,143.68-28,774.08-15,877.76

Finding the Fourth Proportional to 19,143.68, 28,774.08 and 15,877.76

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Solution

The fourth proportional to 19,143.68, 28,774.08 and 15,877.76 is: 23,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.68 : 28,774.08 = 15,877.76 : x
  2. Step 2: Convert to fraction form
    19,143.68/28,774.08 = 15,877.76/x
  3. Step 3: Cross multiply
    19,143.68x = 28,774.08 × 15,877.76
  4. Step 4: Simplify right side
    19,143.68x = 456,867,936.46
  5. Step 5: Solve for x
    x = 456,867,936.46/19,143.68
  6. Step 6: Final answer
    x = 23,865.21

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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.