Home / 43,248.64-64,879.60-18,288.72

Finding the Fourth Proportional to 43,248.64, 64,879.60 and 18,288.72

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Solution

The fourth proportional to 43,248.64, 64,879.60 and 18,288.72 is: 27,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,248.64 : 64,879.60 = 18,288.72 : x
  2. Step 2: Convert to fraction form
    43,248.64/64,879.60 = 18,288.72/x
  3. Step 3: Cross multiply
    43,248.64x = 64,879.60 × 18,288.72
  4. Step 4: Simplify right side
    43,248.64x = 1,186,564,838.11
  5. Step 5: Solve for x
    x = 1,186,564,838.11/43,248.64
  6. Step 6: Final answer
    x = 27,435.89

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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.