Home / 20,294.60-27,988.41-12,741.63

Finding the Fourth Proportional to 20,294.60, 27,988.41 and 12,741.63

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Solution

The fourth proportional to 20,294.60, 27,988.41 and 12,741.63 is: 17,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.60 : 27,988.41 = 12,741.63 : x
  2. Step 2: Convert to fraction form
    20,294.60/27,988.41 = 12,741.63/x
  3. Step 3: Cross multiply
    20,294.60x = 27,988.41 × 12,741.63
  4. Step 4: Simplify right side
    20,294.60x = 356,617,964.51
  5. Step 5: Solve for x
    x = 356,617,964.51/20,294.60
  6. Step 6: Final answer
    x = 17,572.07

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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.