Home / 15,321.87-21,153.05-10,025.93

Finding the Fourth Proportional to 15,321.87, 21,153.05 and 10,025.93

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Solution

The fourth proportional to 15,321.87, 21,153.05 and 10,025.93 is: 13,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321.87 : 21,153.05 = 10,025.93 : x
  2. Step 2: Convert to fraction form
    15,321.87/21,153.05 = 10,025.93/x
  3. Step 3: Cross multiply
    15,321.87x = 21,153.05 × 10,025.93
  4. Step 4: Simplify right side
    15,321.87x = 212,078,842.69
  5. Step 5: Solve for x
    x = 212,078,842.69/15,321.87
  6. Step 6: Final answer
    x = 13,841.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.