Home / 31,256.70-43,122.63-19,923.60

Finding the Fourth Proportional to 31,256.70, 43,122.63 and 19,923.60

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Solution

The fourth proportional to 31,256.70, 43,122.63 and 19,923.60 is: 27,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,256.70 : 43,122.63 = 19,923.60 : x
  2. Step 2: Convert to fraction form
    31,256.70/43,122.63 = 19,923.60/x
  3. Step 3: Cross multiply
    31,256.70x = 43,122.63 × 19,923.60
  4. Step 4: Simplify right side
    31,256.70x = 859,158,031.07
  5. Step 5: Solve for x
    x = 859,158,031.07/31,256.70
  6. Step 6: Final answer
    x = 27,487.16

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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.