Home / 21,252.52-29,326.74-12,300.68

Finding the Fourth Proportional to 21,252.52, 29,326.74 and 12,300.68

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Solution

The fourth proportional to 21,252.52, 29,326.74 and 12,300.68 is: 16,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.52 : 29,326.74 = 12,300.68 : x
  2. Step 2: Convert to fraction form
    21,252.52/29,326.74 = 12,300.68/x
  3. Step 3: Cross multiply
    21,252.52x = 29,326.74 × 12,300.68
  4. Step 4: Simplify right side
    21,252.52x = 360,738,844.18
  5. Step 5: Solve for x
    x = 360,738,844.18/21,252.52
  6. Step 6: Final answer
    x = 16,973.93

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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.