Home / 29,442.27-40,643.13-20,486.51

Finding the Fourth Proportional to 29,442.27, 40,643.13 and 20,486.51

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Solution

The fourth proportional to 29,442.27, 40,643.13 and 20,486.51 is: 28,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,442.27 : 40,643.13 = 20,486.51 : x
  2. Step 2: Convert to fraction form
    29,442.27/40,643.13 = 20,486.51/x
  3. Step 3: Cross multiply
    29,442.27x = 40,643.13 × 20,486.51
  4. Step 4: Simplify right side
    29,442.27x = 832,635,889.18
  5. Step 5: Solve for x
    x = 832,635,889.18/29,442.27
  6. Step 6: Final answer
    x = 28,280.29

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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.