Home / 21,459.07-29,615.33-12,029.46

Finding the Fourth Proportional to 21,459.07, 29,615.33 and 12,029.46

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Solution

The fourth proportional to 21,459.07, 29,615.33 and 12,029.46 is: 16,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.07 : 29,615.33 = 12,029.46 : x
  2. Step 2: Convert to fraction form
    21,459.07/29,615.33 = 12,029.46/x
  3. Step 3: Cross multiply
    21,459.07x = 29,615.33 × 12,029.46
  4. Step 4: Simplify right side
    21,459.07x = 356,256,427.62
  5. Step 5: Solve for x
    x = 356,256,427.62/21,459.07
  6. Step 6: Final answer
    x = 16,601.67

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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.