Home / 29,220.16-40,324.32-16,645.12

Finding the Fourth Proportional to 29,220.16, 40,324.32 and 16,645.12

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Solution

The fourth proportional to 29,220.16, 40,324.32 and 16,645.12 is: 22,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220.16 : 40,324.32 = 16,645.12 : x
  2. Step 2: Convert to fraction form
    29,220.16/40,324.32 = 16,645.12/x
  3. Step 3: Cross multiply
    29,220.16x = 40,324.32 × 16,645.12
  4. Step 4: Simplify right side
    29,220.16x = 671,203,145.32
  5. Step 5: Solve for x
    x = 671,203,145.32/29,220.16
  6. Step 6: Final answer
    x = 22,970.55

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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.