Home / 15,421.40-23,132.54-4,891.47

Finding the Fourth Proportional to 15,421.40, 23,132.54 and 4,891.47

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Solution

The fourth proportional to 15,421.40, 23,132.54 and 4,891.47 is: 7,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.40 : 23,132.54 = 4,891.47 : x
  2. Step 2: Convert to fraction form
    15,421.40/23,132.54 = 4,891.47/x
  3. Step 3: Cross multiply
    15,421.40x = 23,132.54 × 4,891.47
  4. Step 4: Simplify right side
    15,421.40x = 113,152,125.43
  5. Step 5: Solve for x
    x = 113,152,125.43/15,421.40
  6. Step 6: Final answer
    x = 7,337.34

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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.