Home / 28,291.41-42,437.12-15,125.67

Finding the Fourth Proportional to 28,291.41, 42,437.12 and 15,125.67

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Solution

The fourth proportional to 28,291.41, 42,437.12 and 15,125.67 is: 22,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.41 : 42,437.12 = 15,125.67 : x
  2. Step 2: Convert to fraction form
    28,291.41/42,437.12 = 15,125.67/x
  3. Step 3: Cross multiply
    28,291.41x = 42,437.12 × 15,125.67
  4. Step 4: Simplify right side
    28,291.41x = 641,889,797.24
  5. Step 5: Solve for x
    x = 641,889,797.24/28,291.41
  6. Step 6: Final answer
    x = 22,688.51

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Similar ratio
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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.