Home / 19,275.96-28,929.35-18,660.87

Finding the Fourth Proportional to 19,275.96, 28,929.35 and 18,660.87

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Solution

The fourth proportional to 19,275.96, 28,929.35 and 18,660.87 is: 28,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,275.96 : 28,929.35 = 18,660.87 : x
  2. Step 2: Convert to fraction form
    19,275.96/28,929.35 = 18,660.87/x
  3. Step 3: Cross multiply
    19,275.96x = 28,929.35 × 18,660.87
  4. Step 4: Simplify right side
    19,275.96x = 539,846,746.23
  5. Step 5: Solve for x
    x = 539,846,746.23/19,275.96
  6. Step 6: Final answer
    x = 28,006.22

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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.