Home / 21,277.52-29,364.64-12,325.16

Finding the Fourth Proportional to 21,277.52, 29,364.64 and 12,325.16

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Solution

The fourth proportional to 21,277.52, 29,364.64 and 12,325.16 is: 17,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.52 : 29,364.64 = 12,325.16 : x
  2. Step 2: Convert to fraction form
    21,277.52/29,364.64 = 12,325.16/x
  3. Step 3: Cross multiply
    21,277.52x = 29,364.64 × 12,325.16
  4. Step 4: Simplify right side
    21,277.52x = 361,923,886.34
  5. Step 5: Solve for x
    x = 361,923,886.34/21,277.52
  6. Step 6: Final answer
    x = 17,009.68

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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.