Home / 19,947.41-29,931.22-13,288.46

Finding the Fourth Proportional to 19,947.41, 29,931.22 and 13,288.46

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Solution

The fourth proportional to 19,947.41, 29,931.22 and 13,288.46 is: 19,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.41 : 29,931.22 = 13,288.46 : x
  2. Step 2: Convert to fraction form
    19,947.41/29,931.22 = 13,288.46/x
  3. Step 3: Cross multiply
    19,947.41x = 29,931.22 × 13,288.46
  4. Step 4: Simplify right side
    19,947.41x = 397,739,686.68
  5. Step 5: Solve for x
    x = 397,739,686.68/19,947.41
  6. Step 6: Final answer
    x = 19,939.41

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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.