Home / 22,307.77-30,787.30-13,355.27

Finding the Fourth Proportional to 22,307.77, 30,787.30 and 13,355.27

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Solution

The fourth proportional to 22,307.77, 30,787.30 and 13,355.27 is: 18,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.77 : 30,787.30 = 13,355.27 : x
  2. Step 2: Convert to fraction form
    22,307.77/30,787.30 = 13,355.27/x
  3. Step 3: Cross multiply
    22,307.77x = 30,787.30 × 13,355.27
  4. Step 4: Simplify right side
    22,307.77x = 411,172,483.36
  5. Step 5: Solve for x
    x = 411,172,483.36/22,307.77
  6. Step 6: Final answer
    x = 18,431.81

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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.