Home / 19,642.59-27,038.31-17,120.32

Finding the Fourth Proportional to 19,642.59, 27,038.31 and 17,120.32

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Solution

The fourth proportional to 19,642.59, 27,038.31 and 17,120.32 is: 23,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.59 : 27,038.31 = 17,120.32 : x
  2. Step 2: Convert to fraction form
    19,642.59/27,038.31 = 17,120.32/x
  3. Step 3: Cross multiply
    19,642.59x = 27,038.31 × 17,120.32
  4. Step 4: Simplify right side
    19,642.59x = 462,904,384.27
  5. Step 5: Solve for x
    x = 462,904,384.27/19,642.59
  6. Step 6: Final answer
    x = 23,566.36

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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.