Home / 28,071.18-42,113.94-8,349.69

Finding the Fourth Proportional to 28,071.18, 42,113.94 and 8,349.69

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Solution

The fourth proportional to 28,071.18, 42,113.94 and 8,349.69 is: 12,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.18 : 42,113.94 = 8,349.69 : x
  2. Step 2: Convert to fraction form
    28,071.18/42,113.94 = 8,349.69/x
  3. Step 3: Cross multiply
    28,071.18x = 42,113.94 × 8,349.69
  4. Step 4: Simplify right side
    28,071.18x = 351,638,343.68
  5. Step 5: Solve for x
    x = 351,638,343.68/28,071.18
  6. Step 6: Final answer
    x = 12,526.67

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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.