Home / 31,528.14-43,509.03-17,380.74

Finding the Fourth Proportional to 31,528.14, 43,509.03 and 17,380.74

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Solution

The fourth proportional to 31,528.14, 43,509.03 and 17,380.74 is: 23,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.14 : 43,509.03 = 17,380.74 : x
  2. Step 2: Convert to fraction form
    31,528.14/43,509.03 = 17,380.74/x
  3. Step 3: Cross multiply
    31,528.14x = 43,509.03 × 17,380.74
  4. Step 4: Simplify right side
    31,528.14x = 756,219,138.08
  5. Step 5: Solve for x
    x = 756,219,138.08/31,528.14
  6. Step 6: Final answer
    x = 23,985.53

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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.