Home / 19,670.17-27,154.89-13,330.26

Finding the Fourth Proportional to 19,670.17, 27,154.89 and 13,330.26

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Solution

The fourth proportional to 19,670.17, 27,154.89 and 13,330.26 is: 18,402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.17 : 27,154.89 = 13,330.26 : x
  2. Step 2: Convert to fraction form
    19,670.17/27,154.89 = 13,330.26/x
  3. Step 3: Cross multiply
    19,670.17x = 27,154.89 × 13,330.26
  4. Step 4: Simplify right side
    19,670.17x = 361,981,541.55
  5. Step 5: Solve for x
    x = 361,981,541.55/19,670.17
  6. Step 6: Final answer
    x = 18,402.56

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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.