Home / 22,827.84-31,511.21-20,433.59

Finding the Fourth Proportional to 22,827.84, 31,511.21 and 20,433.59

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Solution

The fourth proportional to 22,827.84, 31,511.21 and 20,433.59 is: 28,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,827.84 : 31,511.21 = 20,433.59 : x
  2. Step 2: Convert to fraction form
    22,827.84/31,511.21 = 20,433.59/x
  3. Step 3: Cross multiply
    22,827.84x = 31,511.21 × 20,433.59
  4. Step 4: Simplify right side
    22,827.84x = 643,886,885.82
  5. Step 5: Solve for x
    x = 643,886,885.82/22,827.84
  6. Step 6: Final answer
    x = 28,206.21

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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.