Home / 19,579.52-27,041.56-13,280.96

Finding the Fourth Proportional to 19,579.52, 27,041.56 and 13,280.96

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Solution

The fourth proportional to 19,579.52, 27,041.56 and 13,280.96 is: 18,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.52 : 27,041.56 = 13,280.96 : x
  2. Step 2: Convert to fraction form
    19,579.52/27,041.56 = 13,280.96/x
  3. Step 3: Cross multiply
    19,579.52x = 27,041.56 × 13,280.96
  4. Step 4: Simplify right side
    19,579.52x = 359,137,876.70
  5. Step 5: Solve for x
    x = 359,137,876.70/19,579.52
  6. Step 6: Final answer
    x = 18,342.53

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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.