Home / 25,150.08-34,715.20-15,222.40

Finding the Fourth Proportional to 25,150.08, 34,715.20 and 15,222.40

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Solution

The fourth proportional to 25,150.08, 34,715.20 and 15,222.40 is: 21,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,150.08 : 34,715.20 = 15,222.40 : x
  2. Step 2: Convert to fraction form
    25,150.08/34,715.20 = 15,222.40/x
  3. Step 3: Cross multiply
    25,150.08x = 34,715.20 × 15,222.40
  4. Step 4: Simplify right side
    25,150.08x = 528,448,660.48
  5. Step 5: Solve for x
    x = 528,448,660.48/25,150.08
  6. Step 6: Final answer
    x = 21,011.81

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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.