Home / 30,216.08-41,712.16-18,122.32

Finding the Fourth Proportional to 30,216.08, 41,712.16 and 18,122.32

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Solution

The fourth proportional to 30,216.08, 41,712.16 and 18,122.32 is: 25,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.08 : 41,712.16 = 18,122.32 : x
  2. Step 2: Convert to fraction form
    30,216.08/41,712.16 = 18,122.32/x
  3. Step 3: Cross multiply
    30,216.08x = 41,712.16 × 18,122.32
  4. Step 4: Simplify right side
    30,216.08x = 755,921,111.41
  5. Step 5: Solve for x
    x = 755,921,111.41/30,216.08
  6. Step 6: Final answer
    x = 25,017.18

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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.