Home / 25,720.91-35,494.67-14,390.36

Finding the Fourth Proportional to 25,720.91, 35,494.67 and 14,390.36

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Solution

The fourth proportional to 25,720.91, 35,494.67 and 14,390.36 is: 19,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,720.91 : 35,494.67 = 14,390.36 : x
  2. Step 2: Convert to fraction form
    25,720.91/35,494.67 = 14,390.36/x
  3. Step 3: Cross multiply
    25,720.91x = 35,494.67 × 14,390.36
  4. Step 4: Simplify right side
    25,720.91x = 510,781,079.38
  5. Step 5: Solve for x
    x = 510,781,079.38/25,720.91
  6. Step 6: Final answer
    x = 19,858.59

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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.