Home / 28,484.87-42,698.14-14,418.81

Finding the Fourth Proportional to 28,484.87, 42,698.14 and 14,418.81

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Solution

The fourth proportional to 28,484.87, 42,698.14 and 14,418.81 is: 21,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.87 : 42,698.14 = 14,418.81 : x
  2. Step 2: Convert to fraction form
    28,484.87/42,698.14 = 14,418.81/x
  3. Step 3: Cross multiply
    28,484.87x = 42,698.14 × 14,418.81
  4. Step 4: Simplify right side
    28,484.87x = 615,656,331.97
  5. Step 5: Solve for x
    x = 615,656,331.97/28,484.87
  6. Step 6: Final answer
    x = 21,613.45

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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.