Home / 25,715.43-35,498.93-15,105.92

Finding the Fourth Proportional to 25,715.43, 35,498.93 and 15,105.92

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Solution

The fourth proportional to 25,715.43, 35,498.93 and 15,105.92 is: 20,853.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.43 : 35,498.93 = 15,105.92 : x
  2. Step 2: Convert to fraction form
    25,715.43/35,498.93 = 15,105.92/x
  3. Step 3: Cross multiply
    25,715.43x = 35,498.93 × 15,105.92
  4. Step 4: Simplify right side
    25,715.43x = 536,243,743.64
  5. Step 5: Solve for x
    x = 536,243,743.64/25,715.43
  6. Step 6: Final answer
    x = 20,853.00

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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.