Home / 28,311.90-42,475.14-10,772.16

Finding the Fourth Proportional to 28,311.90, 42,475.14 and 10,772.16

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Solution

The fourth proportional to 28,311.90, 42,475.14 and 10,772.16 is: 16,161.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.90 : 42,475.14 = 10,772.16 : x
  2. Step 2: Convert to fraction form
    28,311.90/42,475.14 = 10,772.16/x
  3. Step 3: Cross multiply
    28,311.90x = 42,475.14 × 10,772.16
  4. Step 4: Simplify right side
    28,311.90x = 457,549,004.10
  5. Step 5: Solve for x
    x = 457,549,004.10/28,311.90
  6. Step 6: Final answer
    x = 16,161.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.