Home / 28,891.04-39,867.81-16,143.26

Finding the Fourth Proportional to 28,891.04, 39,867.81 and 16,143.26

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Solution

The fourth proportional to 28,891.04, 39,867.81 and 16,143.26 is: 22,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.04 : 39,867.81 = 16,143.26 : x
  2. Step 2: Convert to fraction form
    28,891.04/39,867.81 = 16,143.26/x
  3. Step 3: Cross multiply
    28,891.04x = 39,867.81 × 16,143.26
  4. Step 4: Simplify right side
    28,891.04x = 643,596,422.46
  5. Step 5: Solve for x
    x = 643,596,422.46/28,891.04
  6. Step 6: Final answer
    x = 22,276.68

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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.