Home / 28,397.64-39,189.53-16,299.16

Finding the Fourth Proportional to 28,397.64, 39,189.53 and 16,299.16

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Solution

The fourth proportional to 28,397.64, 39,189.53 and 16,299.16 is: 22,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397.64 : 39,189.53 = 16,299.16 : x
  2. Step 2: Convert to fraction form
    28,397.64/39,189.53 = 16,299.16/x
  3. Step 3: Cross multiply
    28,397.64x = 39,189.53 × 16,299.16
  4. Step 4: Simplify right side
    28,397.64x = 638,756,419.79
  5. Step 5: Solve for x
    x = 638,756,419.79/28,397.64
  6. Step 6: Final answer
    x = 22,493.29

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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.