Home / 30,285.59-41,789.12-16,856.49

Finding the Fourth Proportional to 30,285.59, 41,789.12 and 16,856.49

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Solution

The fourth proportional to 30,285.59, 41,789.12 and 16,856.49 is: 23,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.59 : 41,789.12 = 16,856.49 : x
  2. Step 2: Convert to fraction form
    30,285.59/41,789.12 = 16,856.49/x
  3. Step 3: Cross multiply
    30,285.59x = 41,789.12 × 16,856.49
  4. Step 4: Simplify right side
    30,285.59x = 704,417,799.11
  5. Step 5: Solve for x
    x = 704,417,799.11/30,285.59
  6. Step 6: Final answer
    x = 23,259.18

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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.