Home / 31,232.16-43,093.52-21,162.40

Finding the Fourth Proportional to 31,232.16, 43,093.52 and 21,162.40

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Solution

The fourth proportional to 31,232.16, 43,093.52 and 21,162.40 is: 29,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,232.16 : 43,093.52 = 21,162.40 : x
  2. Step 2: Convert to fraction form
    31,232.16/43,093.52 = 21,162.40/x
  3. Step 3: Cross multiply
    31,232.16x = 43,093.52 × 21,162.40
  4. Step 4: Simplify right side
    31,232.16x = 911,962,307.65
  5. Step 5: Solve for x
    x = 911,962,307.65/31,232.16
  6. Step 6: Final answer
    x = 29,199.46

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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.