Home / 19,280.43-28,925.10-8,187.48

Finding the Fourth Proportional to 19,280.43, 28,925.10 and 8,187.48

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Solution

The fourth proportional to 19,280.43, 28,925.10 and 8,187.48 is: 12,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.43 : 28,925.10 = 8,187.48 : x
  2. Step 2: Convert to fraction form
    19,280.43/28,925.10 = 8,187.48/x
  3. Step 3: Cross multiply
    19,280.43x = 28,925.10 × 8,187.48
  4. Step 4: Simplify right side
    19,280.43x = 236,823,677.75
  5. Step 5: Solve for x
    x = 236,823,677.75/19,280.43
  6. Step 6: Final answer
    x = 12,283.11

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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.