Home / 21,776.44-30,050.58-12,345.64

Finding the Fourth Proportional to 21,776.44, 30,050.58 and 12,345.64

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Solution

The fourth proportional to 21,776.44, 30,050.58 and 12,345.64 is: 17,036.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.44 : 30,050.58 = 12,345.64 : x
  2. Step 2: Convert to fraction form
    21,776.44/30,050.58 = 12,345.64/x
  3. Step 3: Cross multiply
    21,776.44x = 30,050.58 × 12,345.64
  4. Step 4: Simplify right side
    21,776.44x = 370,993,642.47
  5. Step 5: Solve for x
    x = 370,993,642.47/21,776.44
  6. Step 6: Final answer
    x = 17,036.47

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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.