Home / 21,403.83-29,530.10-12,444.02

Finding the Fourth Proportional to 21,403.83, 29,530.10 and 12,444.02

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Solution

The fourth proportional to 21,403.83, 29,530.10 and 12,444.02 is: 17,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.83 : 29,530.10 = 12,444.02 : x
  2. Step 2: Convert to fraction form
    21,403.83/29,530.10 = 12,444.02/x
  3. Step 3: Cross multiply
    21,403.83x = 29,530.10 × 12,444.02
  4. Step 4: Simplify right side
    21,403.83x = 367,473,155.00
  5. Step 5: Solve for x
    x = 367,473,155.00/21,403.83
  6. Step 6: Final answer
    x = 17,168.57

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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.