Home / 29,403.72-40,570.80-21,447.84

Finding the Fourth Proportional to 29,403.72, 40,570.80 and 21,447.84

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Solution

The fourth proportional to 29,403.72, 40,570.80 and 21,447.84 is: 29,593.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,403.72 : 40,570.80 = 21,447.84 : x
  2. Step 2: Convert to fraction form
    29,403.72/40,570.80 = 21,447.84/x
  3. Step 3: Cross multiply
    29,403.72x = 40,570.80 × 21,447.84
  4. Step 4: Simplify right side
    29,403.72x = 870,156,027.07
  5. Step 5: Solve for x
    x = 870,156,027.07/29,403.72
  6. Step 6: Final answer
    x = 29,593.40

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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.