Home / 40,018.65-60,036.56-11,940.91

Finding the Fourth Proportional to 40,018.65, 60,036.56 and 11,940.91

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Solution

The fourth proportional to 40,018.65, 60,036.56 and 11,940.91 is: 17,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.65 : 60,036.56 = 11,940.91 : x
  2. Step 2: Convert to fraction form
    40,018.65/60,036.56 = 11,940.91/x
  3. Step 3: Cross multiply
    40,018.65x = 60,036.56 × 11,940.91
  4. Step 4: Simplify right side
    40,018.65x = 716,890,949.87
  5. Step 5: Solve for x
    x = 716,890,949.87/40,018.65
  6. Step 6: Final answer
    x = 17,913.92

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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.