Home / 28,543.54-42,804.66-9,818.28

Finding the Fourth Proportional to 28,543.54, 42,804.66 and 9,818.28

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Solution

The fourth proportional to 28,543.54, 42,804.66 and 9,818.28 is: 14,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.54 : 42,804.66 = 9,818.28 : x
  2. Step 2: Convert to fraction form
    28,543.54/42,804.66 = 9,818.28/x
  3. Step 3: Cross multiply
    28,543.54x = 42,804.66 × 9,818.28
  4. Step 4: Simplify right side
    28,543.54x = 420,268,137.18
  5. Step 5: Solve for x
    x = 420,268,137.18/28,543.54
  6. Step 6: Final answer
    x = 14,723.76

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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.