Home / 19,984.89-29,995.56-8,889.51

Finding the Fourth Proportional to 19,984.89, 29,995.56 and 8,889.51

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Solution

The fourth proportional to 19,984.89, 29,995.56 and 8,889.51 is: 13,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.89 : 29,995.56 = 8,889.51 : x
  2. Step 2: Convert to fraction form
    19,984.89/29,995.56 = 8,889.51/x
  3. Step 3: Cross multiply
    19,984.89x = 29,995.56 × 8,889.51
  4. Step 4: Simplify right side
    19,984.89x = 266,645,830.58
  5. Step 5: Solve for x
    x = 266,645,830.58/19,984.89
  6. Step 6: Final answer
    x = 13,342.37

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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.