Home / 21,622.36-29,840.49-12,065.32

Finding the Fourth Proportional to 21,622.36, 29,840.49 and 12,065.32

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Solution

The fourth proportional to 21,622.36, 29,840.49 and 12,065.32 is: 16,651.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.36 : 29,840.49 = 12,065.32 : x
  2. Step 2: Convert to fraction form
    21,622.36/29,840.49 = 12,065.32/x
  3. Step 3: Cross multiply
    21,622.36x = 29,840.49 × 12,065.32
  4. Step 4: Simplify right side
    21,622.36x = 360,035,060.81
  5. Step 5: Solve for x
    x = 360,035,060.81/21,622.36
  6. Step 6: Final answer
    x = 16,651.05

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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.