Home / 31,528.96-43,510.20-17,381.80

Finding the Fourth Proportional to 31,528.96, 43,510.20 and 17,381.80

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Solution

The fourth proportional to 31,528.96, 43,510.20 and 17,381.80 is: 23,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.96 : 43,510.20 = 17,381.80 : x
  2. Step 2: Convert to fraction form
    31,528.96/43,510.20 = 17,381.80/x
  3. Step 3: Cross multiply
    31,528.96x = 43,510.20 × 17,381.80
  4. Step 4: Simplify right side
    31,528.96x = 756,285,594.36
  5. Step 5: Solve for x
    x = 756,285,594.36/31,528.96
  6. Step 6: Final answer
    x = 23,987.01

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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.