Home / 29,428.08-40,611.12-15,999.48

Finding the Fourth Proportional to 29,428.08, 40,611.12 and 15,999.48

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Solution

The fourth proportional to 29,428.08, 40,611.12 and 15,999.48 is: 22,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.08 : 40,611.12 = 15,999.48 : x
  2. Step 2: Convert to fraction form
    29,428.08/40,611.12 = 15,999.48/x
  3. Step 3: Cross multiply
    29,428.08x = 40,611.12 × 15,999.48
  4. Step 4: Simplify right side
    29,428.08x = 649,756,802.22
  5. Step 5: Solve for x
    x = 649,756,802.22/29,428.08
  6. Step 6: Final answer
    x = 22,079.48

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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.