Home / 19,809.93-27,315.30-12,630.27

Finding the Fourth Proportional to 19,809.93, 27,315.30 and 12,630.27

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Solution

The fourth proportional to 19,809.93, 27,315.30 and 12,630.27 is: 17,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.93 : 27,315.30 = 12,630.27 : x
  2. Step 2: Convert to fraction form
    19,809.93/27,315.30 = 12,630.27/x
  3. Step 3: Cross multiply
    19,809.93x = 27,315.30 × 12,630.27
  4. Step 4: Simplify right side
    19,809.93x = 344,999,614.13
  5. Step 5: Solve for x
    x = 344,999,614.13/19,809.93
  6. Step 6: Final answer
    x = 17,415.49

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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.