Home / 21,490.58-29,657.04-12,059.12

Finding the Fourth Proportional to 21,490.58, 29,657.04 and 12,059.12

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Solution

The fourth proportional to 21,490.58, 29,657.04 and 12,059.12 is: 16,641.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.58 : 29,657.04 = 12,059.12 : x
  2. Step 2: Convert to fraction form
    21,490.58/29,657.04 = 12,059.12/x
  3. Step 3: Cross multiply
    21,490.58x = 29,657.04 × 12,059.12
  4. Step 4: Simplify right side
    21,490.58x = 357,637,804.20
  5. Step 5: Solve for x
    x = 357,637,804.20/21,490.58
  6. Step 6: Final answer
    x = 16,641.61

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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.