Home / 28,079.75-42,119.50-7,303.19

Finding the Fourth Proportional to 28,079.75, 42,119.50 and 7,303.19

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Solution

The fourth proportional to 28,079.75, 42,119.50 and 7,303.19 is: 10,954.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.75 : 42,119.50 = 7,303.19 : x
  2. Step 2: Convert to fraction form
    28,079.75/42,119.50 = 7,303.19/x
  3. Step 3: Cross multiply
    28,079.75x = 42,119.50 × 7,303.19
  4. Step 4: Simplify right side
    28,079.75x = 307,606,711.21
  5. Step 5: Solve for x
    x = 307,606,711.21/28,079.75
  6. Step 6: Final answer
    x = 10,954.75

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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.