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Finding the Fourth Proportional to 29,476.40, 44,117.40 and 20,728.40

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Solution

The fourth proportional to 29,476.40, 44,117.40 and 20,728.40 is: 31,024.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,476.40 : 44,117.40 = 20,728.40 : x
  2. Step 2: Convert to fraction form
    29,476.40/44,117.40 = 20,728.40/x
  3. Step 3: Cross multiply
    29,476.40x = 44,117.40 × 20,728.40
  4. Step 4: Simplify right side
    29,476.40x = 914,483,114.16
  5. Step 5: Solve for x
    x = 914,483,114.16/29,476.40
  6. Step 6: Final answer
    x = 31,024.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.