Home / 21,960,390.13-30,305,341.19-12,171,466.28

Finding the Fourth Proportional to 21,960,390.13, 30,305,341.19 and 12,171,466.28

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Solution

The fourth proportional to 21,960,390.13, 30,305,341.19 and 12,171,466.28 is: 16,796,625.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,390.13 : 30,305,341.19 = 12,171,466.28 : x
  2. Step 2: Convert to fraction form
    21,960,390.13/30,305,341.19 = 12,171,466.28/x
  3. Step 3: Cross multiply
    21,960,390.13x = 30,305,341.19 × 12,171,466.28
  4. Step 4: Simplify right side
    21,960,390.13x = 368,860,438,397,980.06
  5. Step 5: Solve for x
    x = 368,860,438,397,980.06/21,960,390.13
  6. Step 6: Final answer
    x = 16,796,625.02

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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.