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Finding the Fourth Proportional to 29,325.57, 40,415.01 and 20,828.07

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Solution

The fourth proportional to 29,325.57, 40,415.01 and 20,828.07 is: 28,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,325.57 : 40,415.01 = 20,828.07 : x
  2. Step 2: Convert to fraction form
    29,325.57/40,415.01 = 20,828.07/x
  3. Step 3: Cross multiply
    29,325.57x = 40,415.01 × 20,828.07
  4. Step 4: Simplify right side
    29,325.57x = 841,766,657.33
  5. Step 5: Solve for x
    x = 841,766,657.33/29,325.57
  6. Step 6: Final answer
    x = 28,704.19

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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.