Home / 38,590.02-57,889.18-12,288.62

Finding the Fourth Proportional to 38,590.02, 57,889.18 and 12,288.62

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Solution

The fourth proportional to 38,590.02, 57,889.18 and 12,288.62 is: 18,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,590.02 : 57,889.18 = 12,288.62 : x
  2. Step 2: Convert to fraction form
    38,590.02/57,889.18 = 12,288.62/x
  3. Step 3: Cross multiply
    38,590.02x = 57,889.18 × 12,288.62
  4. Step 4: Simplify right side
    38,590.02x = 711,378,135.13
  5. Step 5: Solve for x
    x = 711,378,135.13/38,590.02
  6. Step 6: Final answer
    x = 18,434.25

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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.