Home / 28,132.16-42,204.64-14,977.60

Finding the Fourth Proportional to 28,132.16, 42,204.64 and 14,977.60

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Solution

The fourth proportional to 28,132.16, 42,204.64 and 14,977.60 is: 22,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.16 : 42,204.64 = 14,977.60 : x
  2. Step 2: Convert to fraction form
    28,132.16/42,204.64 = 14,977.60/x
  3. Step 3: Cross multiply
    28,132.16x = 42,204.64 × 14,977.60
  4. Step 4: Simplify right side
    28,132.16x = 632,124,216.06
  5. Step 5: Solve for x
    x = 632,124,216.06/28,132.16
  6. Step 6: Final answer
    x = 22,469.81

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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.