Home / 28,350.81-42,435.27-18,841.31

Finding the Fourth Proportional to 28,350.81, 42,435.27 and 18,841.31

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Solution

The fourth proportional to 28,350.81, 42,435.27 and 18,841.31 is: 28,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.81 : 42,435.27 = 18,841.31 : x
  2. Step 2: Convert to fraction form
    28,350.81/42,435.27 = 18,841.31/x
  3. Step 3: Cross multiply
    28,350.81x = 42,435.27 × 18,841.31
  4. Step 4: Simplify right side
    28,350.81x = 799,535,970.97
  5. Step 5: Solve for x
    x = 799,535,970.97/28,350.81
  6. Step 6: Final answer
    x = 28,201.52

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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.