Home / 28,192.37-42,288.50-12,393.63

Finding the Fourth Proportional to 28,192.37, 42,288.50 and 12,393.63

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Solution

The fourth proportional to 28,192.37, 42,288.50 and 12,393.63 is: 18,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.37 : 42,288.50 = 12,393.63 : x
  2. Step 2: Convert to fraction form
    28,192.37/42,288.50 = 12,393.63/x
  3. Step 3: Cross multiply
    28,192.37x = 42,288.50 × 12,393.63
  4. Step 4: Simplify right side
    28,192.37x = 524,107,960.29
  5. Step 5: Solve for x
    x = 524,107,960.29/28,192.37
  6. Step 6: Final answer
    x = 18,590.42

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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.