Home / 31,528.53-43,509.70-17,381.88

Finding the Fourth Proportional to 31,528.53, 43,509.70 and 17,381.88

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Solution

The fourth proportional to 31,528.53, 43,509.70 and 17,381.88 is: 23,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.53 : 43,509.70 = 17,381.88 : x
  2. Step 2: Convert to fraction form
    31,528.53/43,509.70 = 17,381.88/x
  3. Step 3: Cross multiply
    31,528.53x = 43,509.70 × 17,381.88
  4. Step 4: Simplify right side
    31,528.53x = 756,280,166.69
  5. Step 5: Solve for x
    x = 756,280,166.69/31,528.53
  6. Step 6: Final answer
    x = 23,987.17

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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.