Home / 25,115.77-34,656.81-14,905.22

Finding the Fourth Proportional to 25,115.77, 34,656.81 and 14,905.22

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Solution

The fourth proportional to 25,115.77, 34,656.81 and 14,905.22 is: 20,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.77 : 34,656.81 = 14,905.22 : x
  2. Step 2: Convert to fraction form
    25,115.77/34,656.81 = 14,905.22/x
  3. Step 3: Cross multiply
    25,115.77x = 34,656.81 × 14,905.22
  4. Step 4: Simplify right side
    25,115.77x = 516,567,232.21
  5. Step 5: Solve for x
    x = 516,567,232.21/25,115.77
  6. Step 6: Final answer
    x = 20,567.44

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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.