Home / 27,331.83-40,947.80-19,816.79

Finding the Fourth Proportional to 27,331.83, 40,947.80 and 19,816.79

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Solution

The fourth proportional to 27,331.83, 40,947.80 and 19,816.79 is: 29,688.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,331.83 : 40,947.80 = 19,816.79 : x
  2. Step 2: Convert to fraction form
    27,331.83/40,947.80 = 19,816.79/x
  3. Step 3: Cross multiply
    27,331.83x = 40,947.80 × 19,816.79
  4. Step 4: Simplify right side
    27,331.83x = 811,453,649.74
  5. Step 5: Solve for x
    x = 811,453,649.74/27,331.83
  6. Step 6: Final answer
    x = 29,688.96

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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.