Home / 28,347.71-39,120.13-16,247.93

Finding the Fourth Proportional to 28,347.71, 39,120.13 and 16,247.93

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Solution

The fourth proportional to 28,347.71, 39,120.13 and 16,247.93 is: 22,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.71 : 39,120.13 = 16,247.93 : x
  2. Step 2: Convert to fraction form
    28,347.71/39,120.13 = 16,247.93/x
  3. Step 3: Cross multiply
    28,347.71x = 39,120.13 × 16,247.93
  4. Step 4: Simplify right side
    28,347.71x = 635,621,133.83
  5. Step 5: Solve for x
    x = 635,621,133.83/28,347.71
  6. Step 6: Final answer
    x = 22,422.31

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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.