Home / 21,935.07-30,256.47-14,381.89

Finding the Fourth Proportional to 21,935.07, 30,256.47 and 14,381.89

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Solution

The fourth proportional to 21,935.07, 30,256.47 and 14,381.89 is: 19,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.07 : 30,256.47 = 14,381.89 : x
  2. Step 2: Convert to fraction form
    21,935.07/30,256.47 = 14,381.89/x
  3. Step 3: Cross multiply
    21,935.07x = 30,256.47 × 14,381.89
  4. Step 4: Simplify right side
    21,935.07x = 435,145,223.33
  5. Step 5: Solve for x
    x = 435,145,223.33/21,935.07
  6. Step 6: Final answer
    x = 19,837.88

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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.