Home / 29,688.90-40,971.30-16,260.72

Finding the Fourth Proportional to 29,688.90, 40,971.30 and 16,260.72

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Solution

The fourth proportional to 29,688.90, 40,971.30 and 16,260.72 is: 22,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.90 : 40,971.30 = 16,260.72 : x
  2. Step 2: Convert to fraction form
    29,688.90/40,971.30 = 16,260.72/x
  3. Step 3: Cross multiply
    29,688.90x = 40,971.30 × 16,260.72
  4. Step 4: Simplify right side
    29,688.90x = 666,222,837.34
  5. Step 5: Solve for x
    x = 666,222,837.34/29,688.90
  6. Step 6: Final answer
    x = 22,440.13

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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.