Home / 19,695.42-27,178.86-10,742.76

Finding the Fourth Proportional to 19,695.42, 27,178.86 and 10,742.76

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Solution

The fourth proportional to 19,695.42, 27,178.86 and 10,742.76 is: 14,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.42 : 27,178.86 = 10,742.76 : x
  2. Step 2: Convert to fraction form
    19,695.42/27,178.86 = 10,742.76/x
  3. Step 3: Cross multiply
    19,695.42x = 27,178.86 × 10,742.76
  4. Step 4: Simplify right side
    19,695.42x = 291,975,970.05
  5. Step 5: Solve for x
    x = 291,975,970.05/19,695.42
  6. Step 6: Final answer
    x = 14,824.56

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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.