Home / 21,619.17-29,834.38-12,059.05

Finding the Fourth Proportional to 21,619.17, 29,834.38 and 12,059.05

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Solution

The fourth proportional to 21,619.17, 29,834.38 and 12,059.05 is: 16,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.17 : 29,834.38 = 12,059.05 : x
  2. Step 2: Convert to fraction form
    21,619.17/29,834.38 = 12,059.05/x
  3. Step 3: Cross multiply
    21,619.17x = 29,834.38 × 12,059.05
  4. Step 4: Simplify right side
    21,619.17x = 359,774,280.14
  5. Step 5: Solve for x
    x = 359,774,280.14/21,619.17
  6. Step 6: Final answer
    x = 16,641.45

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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.