Home / 21,412.08-29,548.80-12,465.18

Finding the Fourth Proportional to 21,412.08, 29,548.80 and 12,465.18

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Solution

The fourth proportional to 21,412.08, 29,548.80 and 12,465.18 is: 17,202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.08 : 29,548.80 = 12,465.18 : x
  2. Step 2: Convert to fraction form
    21,412.08/29,548.80 = 12,465.18/x
  3. Step 3: Cross multiply
    21,412.08x = 29,548.80 × 12,465.18
  4. Step 4: Simplify right side
    21,412.08x = 368,331,110.78
  5. Step 5: Solve for x
    x = 368,331,110.78/21,412.08
  6. Step 6: Final answer
    x = 17,202.02

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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.