Home / 21,306.69-29,403.43-11,746.93

Finding the Fourth Proportional to 21,306.69, 29,403.43 and 11,746.93

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Solution

The fourth proportional to 21,306.69, 29,403.43 and 11,746.93 is: 16,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.69 : 29,403.43 = 11,746.93 : x
  2. Step 2: Convert to fraction form
    21,306.69/29,403.43 = 11,746.93/x
  3. Step 3: Cross multiply
    21,306.69x = 29,403.43 × 11,746.93
  4. Step 4: Simplify right side
    21,306.69x = 345,399,886.95
  5. Step 5: Solve for x
    x = 345,399,886.95/21,306.69
  6. Step 6: Final answer
    x = 16,210.87

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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.