Home / 25,426.99-35,078.20-15,349.69

Finding the Fourth Proportional to 25,426.99, 35,078.20 and 15,349.69

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Solution

The fourth proportional to 25,426.99, 35,078.20 and 15,349.69 is: 21,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,426.99 : 35,078.20 = 15,349.69 : x
  2. Step 2: Convert to fraction form
    25,426.99/35,078.20 = 15,349.69/x
  3. Step 3: Cross multiply
    25,426.99x = 35,078.20 × 15,349.69
  4. Step 4: Simplify right side
    25,426.99x = 538,439,495.76
  5. Step 5: Solve for x
    x = 538,439,495.76/25,426.99
  6. Step 6: Final answer
    x = 21,175.90

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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.