Home / 28,202.71-42,365.10-18,336.91

Finding the Fourth Proportional to 28,202.71, 42,365.10 and 18,336.91

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Solution

The fourth proportional to 28,202.71, 42,365.10 and 18,336.91 is: 27,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.71 : 42,365.10 = 18,336.91 : x
  2. Step 2: Convert to fraction form
    28,202.71/42,365.10 = 18,336.91/x
  3. Step 3: Cross multiply
    28,202.71x = 42,365.10 × 18,336.91
  4. Step 4: Simplify right side
    28,202.71x = 776,845,025.84
  5. Step 5: Solve for x
    x = 776,845,025.84/28,202.71
  6. Step 6: Final answer
    x = 27,545.05

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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.