Home / 28,214.20-42,323.04-7,437.70

Finding the Fourth Proportional to 28,214.20, 42,323.04 and 7,437.70

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Solution

The fourth proportional to 28,214.20, 42,323.04 and 7,437.70 is: 11,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.20 : 42,323.04 = 7,437.70 : x
  2. Step 2: Convert to fraction form
    28,214.20/42,323.04 = 7,437.70/x
  3. Step 3: Cross multiply
    28,214.20x = 42,323.04 × 7,437.70
  4. Step 4: Simplify right side
    28,214.20x = 314,786,074.61
  5. Step 5: Solve for x
    x = 314,786,074.61/28,214.20
  6. Step 6: Final answer
    x = 11,157.01

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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.