Home / 28,888.11-39,865.09-16,141.55

Finding the Fourth Proportional to 28,888.11, 39,865.09 and 16,141.55

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Solution

The fourth proportional to 28,888.11, 39,865.09 and 16,141.55 is: 22,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.11 : 39,865.09 = 16,141.55 : x
  2. Step 2: Convert to fraction form
    28,888.11/39,865.09 = 16,141.55/x
  3. Step 3: Cross multiply
    28,888.11x = 39,865.09 × 16,141.55
  4. Step 4: Simplify right side
    28,888.11x = 643,484,343.49
  5. Step 5: Solve for x
    x = 643,484,343.49/28,888.11
  6. Step 6: Final answer
    x = 22,275.06

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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.