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Finding the Fourth Proportional to 22,137, 30,547.95 and 12,065.40

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Solution

The fourth proportional to 22,137, 30,547.95 and 12,065.40 is: 16,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,137 : 30,547.95 = 12,065.40 : x
  2. Step 2: Convert to fraction form
    22,137/30,547.95 = 12,065.40/x
  3. Step 3: Cross multiply
    22,137x = 30,547.95 × 12,065.40
  4. Step 4: Simplify right side
    22,137x = 368,573,235.93
  5. Step 5: Solve for x
    x = 368,573,235.93/22,137
  6. Step 6: Final answer
    x = 16,649.65

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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.