Home / 19,127.78-28,663.65-17,153.40

Finding the Fourth Proportional to 19,127.78, 28,663.65 and 17,153.40

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Solution

The fourth proportional to 19,127.78, 28,663.65 and 17,153.40 is: 25,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.78 : 28,663.65 = 17,153.40 : x
  2. Step 2: Convert to fraction form
    19,127.78/28,663.65 = 17,153.40/x
  3. Step 3: Cross multiply
    19,127.78x = 28,663.65 × 17,153.40
  4. Step 4: Simplify right side
    19,127.78x = 491,679,053.91
  5. Step 5: Solve for x
    x = 491,679,053.91/19,127.78
  6. Step 6: Final answer
    x = 25,704.98

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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.