Home / 21,549.51-29,721.45-14,747.56

Finding the Fourth Proportional to 21,549.51, 29,721.45 and 14,747.56

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Solution

The fourth proportional to 21,549.51, 29,721.45 and 14,747.56 is: 20,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.51 : 29,721.45 = 14,747.56 : x
  2. Step 2: Convert to fraction form
    21,549.51/29,721.45 = 14,747.56/x
  3. Step 3: Cross multiply
    21,549.51x = 29,721.45 × 14,747.56
  4. Step 4: Simplify right side
    21,549.51x = 438,318,792.86
  5. Step 5: Solve for x
    x = 438,318,792.86/21,549.51
  6. Step 6: Final answer
    x = 20,340.08

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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.