Home / 29,612.48-40,808.96-21,214.40

Finding the Fourth Proportional to 29,612.48, 40,808.96 and 21,214.40

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Solution

The fourth proportional to 29,612.48, 40,808.96 and 21,214.40 is: 29,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,612.48 : 40,808.96 = 21,214.40 : x
  2. Step 2: Convert to fraction form
    29,612.48/40,808.96 = 21,214.40/x
  3. Step 3: Cross multiply
    29,612.48x = 40,808.96 × 21,214.40
  4. Step 4: Simplify right side
    29,612.48x = 865,737,601.02
  5. Step 5: Solve for x
    x = 865,737,601.02/29,612.48
  6. Step 6: Final answer
    x = 29,235.57

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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.