Home / 27,646.94-38,153.81-15,712.31

Finding the Fourth Proportional to 27,646.94, 38,153.81 and 15,712.31

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Solution

The fourth proportional to 27,646.94, 38,153.81 and 15,712.31 is: 21,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.94 : 38,153.81 = 15,712.31 : x
  2. Step 2: Convert to fraction form
    27,646.94/38,153.81 = 15,712.31/x
  3. Step 3: Cross multiply
    27,646.94x = 38,153.81 × 15,712.31
  4. Step 4: Simplify right side
    27,646.94x = 599,484,625.07
  5. Step 5: Solve for x
    x = 599,484,625.07/27,646.94
  6. Step 6: Final answer
    x = 21,683.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.