Home / 19,215.92-28,827.50-8,685.81

Finding the Fourth Proportional to 19,215.92, 28,827.50 and 8,685.81

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Solution

The fourth proportional to 19,215.92, 28,827.50 and 8,685.81 is: 13,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.92 : 28,827.50 = 8,685.81 : x
  2. Step 2: Convert to fraction form
    19,215.92/28,827.50 = 8,685.81/x
  3. Step 3: Cross multiply
    19,215.92x = 28,827.50 × 8,685.81
  4. Step 4: Simplify right side
    19,215.92x = 250,390,144.35
  5. Step 5: Solve for x
    x = 250,390,144.35/19,215.92
  6. Step 6: Final answer
    x = 13,030.35

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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.