Home / 21,153.49-31,730.57-10,057.94

Finding the Fourth Proportional to 21,153.49, 31,730.57 and 10,057.94

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Solution

The fourth proportional to 21,153.49, 31,730.57 and 10,057.94 is: 15,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.49 : 31,730.57 = 10,057.94 : x
  2. Step 2: Convert to fraction form
    21,153.49/31,730.57 = 10,057.94/x
  3. Step 3: Cross multiply
    21,153.49x = 31,730.57 × 10,057.94
  4. Step 4: Simplify right side
    21,153.49x = 319,144,169.23
  5. Step 5: Solve for x
    x = 319,144,169.23/21,153.49
  6. Step 6: Final answer
    x = 15,087.07

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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.