Home / 29,700.81-40,987.12-16,272.54

Finding the Fourth Proportional to 29,700.81, 40,987.12 and 16,272.54

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Solution

The fourth proportional to 29,700.81, 40,987.12 and 16,272.54 is: 22,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,700.81 : 40,987.12 = 16,272.54 : x
  2. Step 2: Convert to fraction form
    29,700.81/40,987.12 = 16,272.54/x
  3. Step 3: Cross multiply
    29,700.81x = 40,987.12 × 16,272.54
  4. Step 4: Simplify right side
    29,700.81x = 666,964,549.68
  5. Step 5: Solve for x
    x = 666,964,549.68/29,700.81
  6. Step 6: Final answer
    x = 22,456.11

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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.