Home / 22,166.81-30,588-15,466.84

Finding the Fourth Proportional to 22,166.81, 30,588 and 15,466.84

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Solution

The fourth proportional to 22,166.81, 30,588 and 15,466.84 is: 21,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,166.81 : 30,588 = 15,466.84 : x
  2. Step 2: Convert to fraction form
    22,166.81/30,588 = 15,466.84/x
  3. Step 3: Cross multiply
    22,166.81x = 30,588 × 15,466.84
  4. Step 4: Simplify right side
    22,166.81x = 473,099,701.92
  5. Step 5: Solve for x
    x = 473,099,701.92/22,166.81
  6. Step 6: Final answer
    x = 21,342.71

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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.