Home / 15,788.48-23,709.60-15,128

Finding the Fourth Proportional to 15,788.48, 23,709.60 and 15,128

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Solution

The fourth proportional to 15,788.48, 23,709.60 and 15,128 is: 22,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.48 : 23,709.60 = 15,128 : x
  2. Step 2: Convert to fraction form
    15,788.48/23,709.60 = 15,128/x
  3. Step 3: Cross multiply
    15,788.48x = 23,709.60 × 15,128
  4. Step 4: Simplify right side
    15,788.48x = 358,678,828.80
  5. Step 5: Solve for x
    x = 358,678,828.80/15,788.48
  6. Step 6: Final answer
    x = 22,717.76

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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.