Home / 28,895.71-43,343.58-18,908.87

Finding the Fourth Proportional to 28,895.71, 43,343.58 and 18,908.87

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Solution

The fourth proportional to 28,895.71, 43,343.58 and 18,908.87 is: 28,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.71 : 43,343.58 = 18,908.87 : x
  2. Step 2: Convert to fraction form
    28,895.71/43,343.58 = 18,908.87/x
  3. Step 3: Cross multiply
    28,895.71x = 43,343.58 × 18,908.87
  4. Step 4: Simplify right side
    28,895.71x = 819,578,133.37
  5. Step 5: Solve for x
    x = 819,578,133.37/28,895.71
  6. Step 6: Final answer
    x = 28,363.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.