Home / 28,389.66-39,177.74-16,459.91

Finding the Fourth Proportional to 28,389.66, 39,177.74 and 16,459.91

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Solution

The fourth proportional to 28,389.66, 39,177.74 and 16,459.91 is: 22,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.66 : 39,177.74 = 16,459.91 : x
  2. Step 2: Convert to fraction form
    28,389.66/39,177.74 = 16,459.91/x
  3. Step 3: Cross multiply
    28,389.66x = 39,177.74 × 16,459.91
  4. Step 4: Simplify right side
    28,389.66x = 644,861,796.22
  5. Step 5: Solve for x
    x = 644,861,796.22/28,389.66
  6. Step 6: Final answer
    x = 22,714.67

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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.