Home / 28,515.68-42,785.58-15,352.67

Finding the Fourth Proportional to 28,515.68, 42,785.58 and 15,352.67

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Solution

The fourth proportional to 28,515.68, 42,785.58 and 15,352.67 is: 23,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.68 : 42,785.58 = 15,352.67 : x
  2. Step 2: Convert to fraction form
    28,515.68/42,785.58 = 15,352.67/x
  3. Step 3: Cross multiply
    28,515.68x = 42,785.58 × 15,352.67
  4. Step 4: Simplify right side
    28,515.68x = 656,873,055.04
  5. Step 5: Solve for x
    x = 656,873,055.04/28,515.68
  6. Step 6: Final answer
    x = 23,035.50

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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.