Home / 28,071.39-42,113.58-8,349.51

Finding the Fourth Proportional to 28,071.39, 42,113.58 and 8,349.51

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Solution

The fourth proportional to 28,071.39, 42,113.58 and 8,349.51 is: 12,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.39 : 42,113.58 = 8,349.51 : x
  2. Step 2: Convert to fraction form
    28,071.39/42,113.58 = 8,349.51/x
  3. Step 3: Cross multiply
    28,071.39x = 42,113.58 × 8,349.51
  4. Step 4: Simplify right side
    28,071.39x = 351,627,757.35
  5. Step 5: Solve for x
    x = 351,627,757.35/28,071.39
  6. Step 6: Final answer
    x = 12,526.20

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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.