Home / 21,332.48-29,430.80-12,374.96

Finding the Fourth Proportional to 21,332.48, 29,430.80 and 12,374.96

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Solution

The fourth proportional to 21,332.48, 29,430.80 and 12,374.96 is: 17,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.48 : 29,430.80 = 12,374.96 : x
  2. Step 2: Convert to fraction form
    21,332.48/29,430.80 = 12,374.96/x
  3. Step 3: Cross multiply
    21,332.48x = 29,430.80 × 12,374.96
  4. Step 4: Simplify right side
    21,332.48x = 364,204,972.77
  5. Step 5: Solve for x
    x = 364,204,972.77/21,332.48
  6. Step 6: Final answer
    x = 17,072.79

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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.