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Finding the Fourth Proportional to 29,378.50, 40,542.33 and 16,130.50

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Solution

The fourth proportional to 29,378.50, 40,542.33 and 16,130.50 is: 22,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,378.50 : 40,542.33 = 16,130.50 : x
  2. Step 2: Convert to fraction form
    29,378.50/40,542.33 = 16,130.50/x
  3. Step 3: Cross multiply
    29,378.50x = 40,542.33 × 16,130.50
  4. Step 4: Simplify right side
    29,378.50x = 653,968,054.07
  5. Step 5: Solve for x
    x = 653,968,054.07/29,378.50
  6. Step 6: Final answer
    x = 22,260.09

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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.