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Finding the Fourth Proportional to 19,903.70, 29,857.35 and 10,036.70

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Solution

The fourth proportional to 19,903.70, 29,857.35 and 10,036.70 is: 15,055.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.70 : 29,857.35 = 10,036.70 : x
  2. Step 2: Convert to fraction form
    19,903.70/29,857.35 = 10,036.70/x
  3. Step 3: Cross multiply
    19,903.70x = 29,857.35 × 10,036.70
  4. Step 4: Simplify right side
    19,903.70x = 299,669,264.75
  5. Step 5: Solve for x
    x = 299,669,264.75/19,903.70
  6. Step 6: Final answer
    x = 15,055.96

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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.