Home / 25,491.47-38,239.63-9,910.31

Finding the Fourth Proportional to 25,491.47, 38,239.63 and 9,910.31

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Solution

The fourth proportional to 25,491.47, 38,239.63 and 9,910.31 is: 14,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.47 : 38,239.63 = 9,910.31 : x
  2. Step 2: Convert to fraction form
    25,491.47/38,239.63 = 9,910.31/x
  3. Step 3: Cross multiply
    25,491.47x = 38,239.63 × 9,910.31
  4. Step 4: Simplify right side
    25,491.47x = 378,966,371.61
  5. Step 5: Solve for x
    x = 378,966,371.61/25,491.47
  6. Step 6: Final answer
    x = 14,866.40

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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.