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Finding the Fourth Proportional to 29,900.80, 44,851.20 and 9,124.30

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Solution

The fourth proportional to 29,900.80, 44,851.20 and 9,124.30 is: 13,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,900.80 : 44,851.20 = 9,124.30 : x
  2. Step 2: Convert to fraction form
    29,900.80/44,851.20 = 9,124.30/x
  3. Step 3: Cross multiply
    29,900.80x = 44,851.20 × 9,124.30
  4. Step 4: Simplify right side
    29,900.80x = 409,235,804.16
  5. Step 5: Solve for x
    x = 409,235,804.16/29,900.80
  6. Step 6: Final answer
    x = 13,686.45

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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.