Home / 22,201.95-30,637.80-12,130.14

Finding the Fourth Proportional to 22,201.95, 30,637.80 and 12,130.14

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Solution

The fourth proportional to 22,201.95, 30,637.80 and 12,130.14 is: 16,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.95 : 30,637.80 = 12,130.14 : x
  2. Step 2: Convert to fraction form
    22,201.95/30,637.80 = 12,130.14/x
  3. Step 3: Cross multiply
    22,201.95x = 30,637.80 × 12,130.14
  4. Step 4: Simplify right side
    22,201.95x = 371,640,803.29
  5. Step 5: Solve for x
    x = 371,640,803.29/22,201.95
  6. Step 6: Final answer
    x = 16,739.11

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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.