Home / 28,066.39-42,106.07-8,344.51

Finding the Fourth Proportional to 28,066.39, 42,106.07 and 8,344.51

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Solution

The fourth proportional to 28,066.39, 42,106.07 and 8,344.51 is: 12,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.39 : 42,106.07 = 8,344.51 : x
  2. Step 2: Convert to fraction form
    28,066.39/42,106.07 = 8,344.51/x
  3. Step 3: Cross multiply
    28,066.39x = 42,106.07 × 8,344.51
  4. Step 4: Simplify right side
    28,066.39x = 351,354,522.18
  5. Step 5: Solve for x
    x = 351,354,522.18/28,066.39
  6. Step 6: Final answer
    x = 12,518.69

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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.