Home / 28,448.76-42,699.56-14,418.68

Finding the Fourth Proportional to 28,448.76, 42,699.56 and 14,418.68

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Solution

The fourth proportional to 28,448.76, 42,699.56 and 14,418.68 is: 21,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.76 : 42,699.56 = 14,418.68 : x
  2. Step 2: Convert to fraction form
    28,448.76/42,699.56 = 14,418.68/x
  3. Step 3: Cross multiply
    28,448.76x = 42,699.56 × 14,418.68
  4. Step 4: Simplify right side
    28,448.76x = 615,671,291.78
  5. Step 5: Solve for x
    x = 615,671,291.78/28,448.76
  6. Step 6: Final answer
    x = 21,641.41

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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.