Home / 28,193.87-42,290.75-12,395.13

Finding the Fourth Proportional to 28,193.87, 42,290.75 and 12,395.13

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Solution

The fourth proportional to 28,193.87, 42,290.75 and 12,395.13 is: 18,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.87 : 42,290.75 = 12,395.13 : x
  2. Step 2: Convert to fraction form
    28,193.87/42,290.75 = 12,395.13/x
  3. Step 3: Cross multiply
    28,193.87x = 42,290.75 × 12,395.13
  4. Step 4: Simplify right side
    28,193.87x = 524,199,282.07
  5. Step 5: Solve for x
    x = 524,199,282.07/28,193.87
  6. Step 6: Final answer
    x = 18,592.67

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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.