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Finding the Fourth Proportional to 29,200.80, 40,300.84 and 19,137.76

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Solution

The fourth proportional to 29,200.80, 40,300.84 and 19,137.76 is: 26,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,200.80 : 40,300.84 = 19,137.76 : x
  2. Step 2: Convert to fraction form
    29,200.80/40,300.84 = 19,137.76/x
  3. Step 3: Cross multiply
    29,200.80x = 40,300.84 × 19,137.76
  4. Step 4: Simplify right side
    29,200.80x = 771,267,803.72
  5. Step 5: Solve for x
    x = 771,267,803.72/29,200.80
  6. Step 6: Final answer
    x = 26,412.56

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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.