Home / 18,875.39-28,315.31-5,727.87

Finding the Fourth Proportional to 18,875.39, 28,315.31 and 5,727.87

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Solution

The fourth proportional to 18,875.39, 28,315.31 and 5,727.87 is: 8,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.39 : 28,315.31 = 5,727.87 : x
  2. Step 2: Convert to fraction form
    18,875.39/28,315.31 = 5,727.87/x
  3. Step 3: Cross multiply
    18,875.39x = 28,315.31 × 5,727.87
  4. Step 4: Simplify right side
    18,875.39x = 162,186,386.05
  5. Step 5: Solve for x
    x = 162,186,386.05/18,875.39
  6. Step 6: Final answer
    x = 8,592.48

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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.