Home / 19,895.70-29,905.53-12,547.38

Finding the Fourth Proportional to 19,895.70, 29,905.53 and 12,547.38

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Solution

The fourth proportional to 19,895.70, 29,905.53 and 12,547.38 is: 18,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.70 : 29,905.53 = 12,547.38 : x
  2. Step 2: Convert to fraction form
    19,895.70/29,905.53 = 12,547.38/x
  3. Step 3: Cross multiply
    19,895.70x = 29,905.53 × 12,547.38
  4. Step 4: Simplify right side
    19,895.70x = 375,236,049.01
  5. Step 5: Solve for x
    x = 375,236,049.01/19,895.70
  6. Step 6: Final answer
    x = 18,860.16

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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.