Home / 28,192.52-38,886.93-18,133.68

Finding the Fourth Proportional to 28,192.52, 38,886.93 and 18,133.68

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Solution

The fourth proportional to 28,192.52, 38,886.93 and 18,133.68 is: 25,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.52 : 38,886.93 = 18,133.68 : x
  2. Step 2: Convert to fraction form
    28,192.52/38,886.93 = 18,133.68/x
  3. Step 3: Cross multiply
    28,192.52x = 38,886.93 × 18,133.68
  4. Step 4: Simplify right side
    28,192.52x = 705,163,144.80
  5. Step 5: Solve for x
    x = 705,163,144.80/28,192.52
  6. Step 6: Final answer
    x = 25,012.42

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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.