Home / 20,058.72-27,681.42-12,000.67

Finding the Fourth Proportional to 20,058.72, 27,681.42 and 12,000.67

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Solution

The fourth proportional to 20,058.72, 27,681.42 and 12,000.67 is: 16,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.72 : 27,681.42 = 12,000.67 : x
  2. Step 2: Convert to fraction form
    20,058.72/27,681.42 = 12,000.67/x
  3. Step 3: Cross multiply
    20,058.72x = 27,681.42 × 12,000.67
  4. Step 4: Simplify right side
    20,058.72x = 332,195,718.06
  5. Step 5: Solve for x
    x = 332,195,718.06/20,058.72
  6. Step 6: Final answer
    x = 16,561.16

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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.