Home / 21,620.12-29,579.18-21,526.76

Finding the Fourth Proportional to 21,620.12, 29,579.18 and 21,526.76

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Solution

The fourth proportional to 21,620.12, 29,579.18 and 21,526.76 is: 29,451.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.12 : 29,579.18 = 21,526.76 : x
  2. Step 2: Convert to fraction form
    21,620.12/29,579.18 = 21,526.76/x
  3. Step 3: Cross multiply
    21,620.12x = 29,579.18 × 21,526.76
  4. Step 4: Simplify right side
    21,620.12x = 636,743,875.17
  5. Step 5: Solve for x
    x = 636,743,875.17/21,620.12
  6. Step 6: Final answer
    x = 29,451.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.