Home / 15,431.28-23,150.58-5,043

Finding the Fourth Proportional to 15,431.28, 23,150.58 and 5,043

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Solution

The fourth proportional to 15,431.28, 23,150.58 and 5,043 is: 7,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.28 : 23,150.58 = 5,043 : x
  2. Step 2: Convert to fraction form
    15,431.28/23,150.58 = 5,043/x
  3. Step 3: Cross multiply
    15,431.28x = 23,150.58 × 5,043
  4. Step 4: Simplify right side
    15,431.28x = 116,748,374.94
  5. Step 5: Solve for x
    x = 116,748,374.94/15,431.28
  6. Step 6: Final answer
    x = 7,565.70

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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.