Home / 28,870.84-39,869.27-27,298.42

Finding the Fourth Proportional to 28,870.84, 39,869.27 and 27,298.42

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Solution

The fourth proportional to 28,870.84, 39,869.27 and 27,298.42 is: 37,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.84 : 39,869.27 = 27,298.42 : x
  2. Step 2: Convert to fraction form
    28,870.84/39,869.27 = 27,298.42/x
  3. Step 3: Cross multiply
    28,870.84x = 39,869.27 × 27,298.42
  4. Step 4: Simplify right side
    28,870.84x = 1,088,368,321.58
  5. Step 5: Solve for x
    x = 1,088,368,321.58/28,870.84
  6. Step 6: Final answer
    x = 37,697.84

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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.