Home / 28,900.32-39,884.16-16,154.16

Finding the Fourth Proportional to 28,900.32, 39,884.16 and 16,154.16

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Solution

The fourth proportional to 28,900.32, 39,884.16 and 16,154.16 is: 22,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.32 : 39,884.16 = 16,154.16 : x
  2. Step 2: Convert to fraction form
    28,900.32/39,884.16 = 16,154.16/x
  3. Step 3: Cross multiply
    28,900.32x = 39,884.16 × 16,154.16
  4. Step 4: Simplify right side
    28,900.32x = 644,295,102.11
  5. Step 5: Solve for x
    x = 644,295,102.11/28,900.32
  6. Step 6: Final answer
    x = 22,293.70

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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.