Home / 21,454.84-29,602.12-12,950.24

Finding the Fourth Proportional to 21,454.84, 29,602.12 and 12,950.24

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Solution

The fourth proportional to 21,454.84, 29,602.12 and 12,950.24 is: 17,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.84 : 29,602.12 = 12,950.24 : x
  2. Step 2: Convert to fraction form
    21,454.84/29,602.12 = 12,950.24/x
  3. Step 3: Cross multiply
    21,454.84x = 29,602.12 × 12,950.24
  4. Step 4: Simplify right side
    21,454.84x = 383,354,558.51
  5. Step 5: Solve for x
    x = 383,354,558.51/21,454.84
  6. Step 6: Final answer
    x = 17,867.98

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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.