Home / 22,588.47-31,162.32-15,878.53

Finding the Fourth Proportional to 22,588.47, 31,162.32 and 15,878.53

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Solution

The fourth proportional to 22,588.47, 31,162.32 and 15,878.53 is: 21,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,588.47 : 31,162.32 = 15,878.53 : x
  2. Step 2: Convert to fraction form
    22,588.47/31,162.32 = 15,878.53/x
  3. Step 3: Cross multiply
    22,588.47x = 31,162.32 × 15,878.53
  4. Step 4: Simplify right side
    22,588.47x = 494,811,871.94
  5. Step 5: Solve for x
    x = 494,811,871.94/22,588.47
  6. Step 6: Final answer
    x = 21,905.51

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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.