Home / 19,112.90-28,612.65-14,204.30

Finding the Fourth Proportional to 19,112.90, 28,612.65 and 14,204.30

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Solution

The fourth proportional to 19,112.90, 28,612.65 and 14,204.30 is: 21,264.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.90 : 28,612.65 = 14,204.30 : x
  2. Step 2: Convert to fraction form
    19,112.90/28,612.65 = 14,204.30/x
  3. Step 3: Cross multiply
    19,112.90x = 28,612.65 × 14,204.30
  4. Step 4: Simplify right side
    19,112.90x = 406,422,664.40
  5. Step 5: Solve for x
    x = 406,422,664.40/19,112.90
  6. Step 6: Final answer
    x = 21,264.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.