Home / 28,245.19-42,316.14-13,224.75

Finding the Fourth Proportional to 28,245.19, 42,316.14 and 13,224.75

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Solution

The fourth proportional to 28,245.19, 42,316.14 and 13,224.75 is: 19,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.19 : 42,316.14 = 13,224.75 : x
  2. Step 2: Convert to fraction form
    28,245.19/42,316.14 = 13,224.75/x
  3. Step 3: Cross multiply
    28,245.19x = 42,316.14 × 13,224.75
  4. Step 4: Simplify right side
    28,245.19x = 559,620,094.76
  5. Step 5: Solve for x
    x = 559,620,094.76/28,245.19
  6. Step 6: Final answer
    x = 19,812.94

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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.