Home / 21,264.84-29,348.87-12,317.85

Finding the Fourth Proportional to 21,264.84, 29,348.87 and 12,317.85

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Solution

The fourth proportional to 21,264.84, 29,348.87 and 12,317.85 is: 17,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.84 : 29,348.87 = 12,317.85 : x
  2. Step 2: Convert to fraction form
    21,264.84/29,348.87 = 12,317.85/x
  3. Step 3: Cross multiply
    21,264.84x = 29,348.87 × 12,317.85
  4. Step 4: Simplify right side
    21,264.84x = 361,514,916.74
  5. Step 5: Solve for x
    x = 361,514,916.74/21,264.84
  6. Step 6: Final answer
    x = 17,000.59

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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.