Home / 15,985.76-23,981.37-4,891.29

Finding the Fourth Proportional to 15,985.76, 23,981.37 and 4,891.29

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Solution

The fourth proportional to 15,985.76, 23,981.37 and 4,891.29 is: 7,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.76 : 23,981.37 = 4,891.29 : x
  2. Step 2: Convert to fraction form
    15,985.76/23,981.37 = 4,891.29/x
  3. Step 3: Cross multiply
    15,985.76x = 23,981.37 × 4,891.29
  4. Step 4: Simplify right side
    15,985.76x = 117,299,726.99
  5. Step 5: Solve for x
    x = 117,299,726.99/15,985.76
  6. Step 6: Final answer
    x = 7,337.77

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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.