Home / 22,128.81-30,538.53-12,058.08

Finding the Fourth Proportional to 22,128.81, 30,538.53 and 12,058.08

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Solution

The fourth proportional to 22,128.81, 30,538.53 and 12,058.08 is: 16,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.81 : 30,538.53 = 12,058.08 : x
  2. Step 2: Convert to fraction form
    22,128.81/30,538.53 = 12,058.08/x
  3. Step 3: Cross multiply
    22,128.81x = 30,538.53 × 12,058.08
  4. Step 4: Simplify right side
    22,128.81x = 368,236,037.82
  5. Step 5: Solve for x
    x = 368,236,037.82/22,128.81
  6. Step 6: Final answer
    x = 16,640.57

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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.