Home / 21,068.20-29,085.78-14,363.68

Finding the Fourth Proportional to 21,068.20, 29,085.78 and 14,363.68

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Solution

The fourth proportional to 21,068.20, 29,085.78 and 14,363.68 is: 19,829.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.20 : 29,085.78 = 14,363.68 : x
  2. Step 2: Convert to fraction form
    21,068.20/29,085.78 = 14,363.68/x
  3. Step 3: Cross multiply
    21,068.20x = 29,085.78 × 14,363.68
  4. Step 4: Simplify right side
    21,068.20x = 417,778,872.16
  5. Step 5: Solve for x
    x = 417,778,872.16/21,068.20
  6. Step 6: Final answer
    x = 19,829.83

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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.