Home / 19,861.42-27,407.36-10,909.52

Finding the Fourth Proportional to 19,861.42, 27,407.36 and 10,909.52

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Solution

The fourth proportional to 19,861.42, 27,407.36 and 10,909.52 is: 15,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.42 : 27,407.36 = 10,909.52 : x
  2. Step 2: Convert to fraction form
    19,861.42/27,407.36 = 10,909.52/x
  3. Step 3: Cross multiply
    19,861.42x = 27,407.36 × 10,909.52
  4. Step 4: Simplify right side
    19,861.42x = 299,001,142.07
  5. Step 5: Solve for x
    x = 299,001,142.07/19,861.42
  6. Step 6: Final answer
    x = 15,054.37

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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.