Home / 25,371.99-35,012.79-15,300.45

Finding the Fourth Proportional to 25,371.99, 35,012.79 and 15,300.45

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Solution

The fourth proportional to 25,371.99, 35,012.79 and 15,300.45 is: 21,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,371.99 : 35,012.79 = 15,300.45 : x
  2. Step 2: Convert to fraction form
    25,371.99/35,012.79 = 15,300.45/x
  3. Step 3: Cross multiply
    25,371.99x = 35,012.79 × 15,300.45
  4. Step 4: Simplify right side
    25,371.99x = 535,711,442.76
  5. Step 5: Solve for x
    x = 535,711,442.76/25,371.99
  6. Step 6: Final answer
    x = 21,114.29

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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.