Home / 21,316.29-29,415.99-12,364.62

Finding the Fourth Proportional to 21,316.29, 29,415.99 and 12,364.62

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Solution

The fourth proportional to 21,316.29, 29,415.99 and 12,364.62 is: 17,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.29 : 29,415.99 = 12,364.62 : x
  2. Step 2: Convert to fraction form
    21,316.29/29,415.99 = 12,364.62/x
  3. Step 3: Cross multiply
    21,316.29x = 29,415.99 × 12,364.62
  4. Step 4: Simplify right side
    21,316.29x = 363,717,538.27
  5. Step 5: Solve for x
    x = 363,717,538.27/21,316.29
  6. Step 6: Final answer
    x = 17,062.89

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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.