Home / 28,686.60-43,046.64-12,045.24

Finding the Fourth Proportional to 28,686.60, 43,046.64 and 12,045.24

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Solution

The fourth proportional to 28,686.60, 43,046.64 and 12,045.24 is: 18,074.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.60 : 43,046.64 = 12,045.24 : x
  2. Step 2: Convert to fraction form
    28,686.60/43,046.64 = 12,045.24/x
  3. Step 3: Cross multiply
    28,686.60x = 43,046.64 × 12,045.24
  4. Step 4: Simplify right side
    28,686.60x = 518,507,109.99
  5. Step 5: Solve for x
    x = 518,507,109.99/28,686.60
  6. Step 6: Final answer
    x = 18,074.89

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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.