Home / 29,688.78-40,971.30-16,260.90

Finding the Fourth Proportional to 29,688.78, 40,971.30 and 16,260.90

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Solution

The fourth proportional to 29,688.78, 40,971.30 and 16,260.90 is: 22,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.78 : 40,971.30 = 16,260.90 : x
  2. Step 2: Convert to fraction form
    29,688.78/40,971.30 = 16,260.90/x
  3. Step 3: Cross multiply
    29,688.78x = 40,971.30 × 16,260.90
  4. Step 4: Simplify right side
    29,688.78x = 666,230,319.48
  5. Step 5: Solve for x
    x = 666,230,319.48/29,688.78
  6. Step 6: Final answer
    x = 22,440.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.