Home / 19,717.34-27,239.61-12,927.50

Finding the Fourth Proportional to 19,717.34, 27,239.61 and 12,927.50

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Solution

The fourth proportional to 19,717.34, 27,239.61 and 12,927.50 is: 17,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.34 : 27,239.61 = 12,927.50 : x
  2. Step 2: Convert to fraction form
    19,717.34/27,239.61 = 12,927.50/x
  3. Step 3: Cross multiply
    19,717.34x = 27,239.61 × 12,927.50
  4. Step 4: Simplify right side
    19,717.34x = 352,140,058.28
  5. Step 5: Solve for x
    x = 352,140,058.28/19,717.34
  6. Step 6: Final answer
    x = 17,859.41

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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.