Home / 28,870.27-39,551.61-27,790.90

Finding the Fourth Proportional to 28,870.27, 39,551.61 and 27,790.90

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Solution

The fourth proportional to 28,870.27, 39,551.61 and 27,790.90 is: 38,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.27 : 39,551.61 = 27,790.90 : x
  2. Step 2: Convert to fraction form
    28,870.27/39,551.61 = 27,790.90/x
  3. Step 3: Cross multiply
    28,870.27x = 39,551.61 × 27,790.90
  4. Step 4: Simplify right side
    28,870.27x = 1,099,174,809.81
  5. Step 5: Solve for x
    x = 1,099,174,809.81/28,870.27
  6. Step 6: Final answer
    x = 38,072.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.