Home / 19,859.42-27,387.69-13,495.51

Finding the Fourth Proportional to 19,859.42, 27,387.69 and 13,495.51

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Solution

The fourth proportional to 19,859.42, 27,387.69 and 13,495.51 is: 18,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.42 : 27,387.69 = 13,495.51 : x
  2. Step 2: Convert to fraction form
    19,859.42/27,387.69 = 13,495.51/x
  3. Step 3: Cross multiply
    19,859.42x = 27,387.69 × 13,495.51
  4. Step 4: Simplify right side
    19,859.42x = 369,610,844.27
  5. Step 5: Solve for x
    x = 369,610,844.27/19,859.42
  6. Step 6: Final answer
    x = 18,611.36

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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.