Home / 28,192.73-38,905.63-15,271.76

Finding the Fourth Proportional to 28,192.73, 38,905.63 and 15,271.76

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Solution

The fourth proportional to 28,192.73, 38,905.63 and 15,271.76 is: 21,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.73 : 38,905.63 = 15,271.76 : x
  2. Step 2: Convert to fraction form
    28,192.73/38,905.63 = 15,271.76/x
  3. Step 3: Cross multiply
    28,192.73x = 38,905.63 × 15,271.76
  4. Step 4: Simplify right side
    28,192.73x = 594,157,249.48
  5. Step 5: Solve for x
    x = 594,157,249.48/28,192.73
  6. Step 6: Final answer
    x = 21,074.84

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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.