Home / 21,058.56-29,062.60-12,109.16

Finding the Fourth Proportional to 21,058.56, 29,062.60 and 12,109.16

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Solution

The fourth proportional to 21,058.56, 29,062.60 and 12,109.16 is: 16,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.56 : 29,062.60 = 12,109.16 : x
  2. Step 2: Convert to fraction form
    21,058.56/29,062.60 = 12,109.16/x
  3. Step 3: Cross multiply
    21,058.56x = 29,062.60 × 12,109.16
  4. Step 4: Simplify right side
    21,058.56x = 351,923,673.42
  5. Step 5: Solve for x
    x = 351,923,673.42/21,058.56
  6. Step 6: Final answer
    x = 16,711.67

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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.