Home / 28,210.58-42,318-9,490.67

Finding the Fourth Proportional to 28,210.58, 42,318 and 9,490.67

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Solution

The fourth proportional to 28,210.58, 42,318 and 9,490.67 is: 14,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.58 : 42,318 = 9,490.67 : x
  2. Step 2: Convert to fraction form
    28,210.58/42,318 = 9,490.67/x
  3. Step 3: Cross multiply
    28,210.58x = 42,318 × 9,490.67
  4. Step 4: Simplify right side
    28,210.58x = 401,625,961.47
  5. Step 5: Solve for x
    x = 401,625,961.47/28,210.58
  6. Step 6: Final answer
    x = 14,236.72

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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.