Home / 21,024.54-31,536.77-6,985.67

Finding the Fourth Proportional to 21,024.54, 31,536.77 and 6,985.67

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Solution

The fourth proportional to 21,024.54, 31,536.77 and 6,985.67 is: 10,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.54 : 31,536.77 = 6,985.67 : x
  2. Step 2: Convert to fraction form
    21,024.54/31,536.77 = 6,985.67/x
  3. Step 3: Cross multiply
    21,024.54x = 31,536.77 × 6,985.67
  4. Step 4: Simplify right side
    21,024.54x = 220,305,275.47
  5. Step 5: Solve for x
    x = 220,305,275.47/21,024.54
  6. Step 6: Final answer
    x = 10,478.48

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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.