Home / 28,739.31-39,632.96-19,031.46

Finding the Fourth Proportional to 28,739.31, 39,632.96 and 19,031.46

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Solution

The fourth proportional to 28,739.31, 39,632.96 and 19,031.46 is: 26,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.31 : 39,632.96 = 19,031.46 : x
  2. Step 2: Convert to fraction form
    28,739.31/39,632.96 = 19,031.46/x
  3. Step 3: Cross multiply
    28,739.31x = 39,632.96 × 19,031.46
  4. Step 4: Simplify right side
    28,739.31x = 754,272,997.76
  5. Step 5: Solve for x
    x = 754,272,997.76/28,739.31
  6. Step 6: Final answer
    x = 26,245.34

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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.