Home / 19,327.78-28,947.65-11,520.46

Finding the Fourth Proportional to 19,327.78, 28,947.65 and 11,520.46

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Solution

The fourth proportional to 19,327.78, 28,947.65 and 11,520.46 is: 17,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327.78 : 28,947.65 = 11,520.46 : x
  2. Step 2: Convert to fraction form
    19,327.78/28,947.65 = 11,520.46/x
  3. Step 3: Cross multiply
    19,327.78x = 28,947.65 × 11,520.46
  4. Step 4: Simplify right side
    19,327.78x = 333,490,243.92
  5. Step 5: Solve for x
    x = 333,490,243.92/19,327.78
  6. Step 6: Final answer
    x = 17,254.45

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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.