Home / 23,736.81-32,749.40-15,780.38

Finding the Fourth Proportional to 23,736.81, 32,749.40 and 15,780.38

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Solution

The fourth proportional to 23,736.81, 32,749.40 and 15,780.38 is: 21,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,736.81 : 32,749.40 = 15,780.38 : x
  2. Step 2: Convert to fraction form
    23,736.81/32,749.40 = 15,780.38/x
  3. Step 3: Cross multiply
    23,736.81x = 32,749.40 × 15,780.38
  4. Step 4: Simplify right side
    23,736.81x = 516,797,897.87
  5. Step 5: Solve for x
    x = 516,797,897.87/23,736.81
  6. Step 6: Final answer
    x = 21,772.00

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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.