Home / 19,939.42-29,936.81-10,085.64

Finding the Fourth Proportional to 19,939.42, 29,936.81 and 10,085.64

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Solution

The fourth proportional to 19,939.42, 29,936.81 and 10,085.64 is: 15,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.42 : 29,936.81 = 10,085.64 : x
  2. Step 2: Convert to fraction form
    19,939.42/29,936.81 = 10,085.64/x
  3. Step 3: Cross multiply
    19,939.42x = 29,936.81 × 10,085.64
  4. Step 4: Simplify right side
    19,939.42x = 301,931,888.41
  5. Step 5: Solve for x
    x = 301,931,888.41/19,939.42
  6. Step 6: Final answer
    x = 15,142.46

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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.