Home / 28,245.12-42,316.04-13,224.69

Finding the Fourth Proportional to 28,245.12, 42,316.04 and 13,224.69

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Solution

The fourth proportional to 28,245.12, 42,316.04 and 13,224.69 is: 19,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.12 : 42,316.04 = 13,224.69 : x
  2. Step 2: Convert to fraction form
    28,245.12/42,316.04 = 13,224.69/x
  3. Step 3: Cross multiply
    28,245.12x = 42,316.04 × 13,224.69
  4. Step 4: Simplify right side
    28,245.12x = 559,616,444.90
  5. Step 5: Solve for x
    x = 559,616,444.90/28,245.12
  6. Step 6: Final answer
    x = 19,812.85

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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.