Home / 25,715.48-38,546.85-12,551.63

Finding the Fourth Proportional to 25,715.48, 38,546.85 and 12,551.63

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Solution

The fourth proportional to 25,715.48, 38,546.85 and 12,551.63 is: 18,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.48 : 38,546.85 = 12,551.63 : x
  2. Step 2: Convert to fraction form
    25,715.48/38,546.85 = 12,551.63/x
  3. Step 3: Cross multiply
    25,715.48x = 38,546.85 × 12,551.63
  4. Step 4: Simplify right side
    25,715.48x = 483,825,798.87
  5. Step 5: Solve for x
    x = 483,825,798.87/25,715.48
  6. Step 6: Final answer
    x = 18,814.57

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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.