Home / 21,352.47-29,457.35-12,276.25

Finding the Fourth Proportional to 21,352.47, 29,457.35 and 12,276.25

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Solution

The fourth proportional to 21,352.47, 29,457.35 and 12,276.25 is: 16,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.47 : 29,457.35 = 12,276.25 : x
  2. Step 2: Convert to fraction form
    21,352.47/29,457.35 = 12,276.25/x
  3. Step 3: Cross multiply
    21,352.47x = 29,457.35 × 12,276.25
  4. Step 4: Simplify right side
    21,352.47x = 361,625,705.68
  5. Step 5: Solve for x
    x = 361,625,705.68/21,352.47
  6. Step 6: Final answer
    x = 16,936.02

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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.