Home / 19,741.61-27,242.78-12,477.59

Finding the Fourth Proportional to 19,741.61, 27,242.78 and 12,477.59

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Solution

The fourth proportional to 19,741.61, 27,242.78 and 12,477.59 is: 17,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,741.61 : 27,242.78 = 12,477.59 : x
  2. Step 2: Convert to fraction form
    19,741.61/27,242.78 = 12,477.59/x
  3. Step 3: Cross multiply
    19,741.61x = 27,242.78 × 12,477.59
  4. Step 4: Simplify right side
    19,741.61x = 339,924,366.29
  5. Step 5: Solve for x
    x = 339,924,366.29/19,741.61
  6. Step 6: Final answer
    x = 17,218.68

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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.