Home / 28,722.80-43,077.56-10,955.45

Finding the Fourth Proportional to 28,722.80, 43,077.56 and 10,955.45

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Solution

The fourth proportional to 28,722.80, 43,077.56 and 10,955.45 is: 16,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.80 : 43,077.56 = 10,955.45 : x
  2. Step 2: Convert to fraction form
    28,722.80/43,077.56 = 10,955.45/x
  3. Step 3: Cross multiply
    28,722.80x = 43,077.56 × 10,955.45
  4. Step 4: Simplify right side
    28,722.80x = 471,934,107.62
  5. Step 5: Solve for x
    x = 471,934,107.62/28,722.80
  6. Step 6: Final answer
    x = 16,430.64

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1.5x scale

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.