Home / 28,517.68-42,788.58-15,354.67

Finding the Fourth Proportional to 28,517.68, 42,788.58 and 15,354.67

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Solution

The fourth proportional to 28,517.68, 42,788.58 and 15,354.67 is: 23,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.68 : 42,788.58 = 15,354.67 : x
  2. Step 2: Convert to fraction form
    28,517.68/42,788.58 = 15,354.67/x
  3. Step 3: Cross multiply
    28,517.68x = 42,788.58 × 15,354.67
  4. Step 4: Simplify right side
    28,517.68x = 657,004,525.67
  5. Step 5: Solve for x
    x = 657,004,525.67/28,517.68
  6. Step 6: Final answer
    x = 23,038.50

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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.