Home / 37,886.81-52,282.79-20,890.76

Finding the Fourth Proportional to 37,886.81, 52,282.79 and 20,890.76

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Solution

The fourth proportional to 37,886.81, 52,282.79 and 20,890.76 is: 28,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,886.81 : 52,282.79 = 20,890.76 : x
  2. Step 2: Convert to fraction form
    37,886.81/52,282.79 = 20,890.76/x
  3. Step 3: Cross multiply
    37,886.81x = 52,282.79 × 20,890.76
  4. Step 4: Simplify right side
    37,886.81x = 1,092,227,218.02
  5. Step 5: Solve for x
    x = 1,092,227,218.02/37,886.81
  6. Step 6: Final answer
    x = 28,828.69

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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.