Home / 20,443.74-28,215.75-14,064.99

Finding the Fourth Proportional to 20,443.74, 28,215.75 and 14,064.99

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Solution

The fourth proportional to 20,443.74, 28,215.75 and 14,064.99 is: 19,412.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.74 : 28,215.75 = 14,064.99 : x
  2. Step 2: Convert to fraction form
    20,443.74/28,215.75 = 14,064.99/x
  3. Step 3: Cross multiply
    20,443.74x = 28,215.75 × 14,064.99
  4. Step 4: Simplify right side
    20,443.74x = 396,854,241.59
  5. Step 5: Solve for x
    x = 396,854,241.59/20,443.74
  6. Step 6: Final answer
    x = 19,412.02

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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.