Home / 19,900.84-27,432.51-14,857.39

Finding the Fourth Proportional to 19,900.84, 27,432.51 and 14,857.39

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Solution

The fourth proportional to 19,900.84, 27,432.51 and 14,857.39 is: 20,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.84 : 27,432.51 = 14,857.39 : x
  2. Step 2: Convert to fraction form
    19,900.84/27,432.51 = 14,857.39/x
  3. Step 3: Cross multiply
    19,900.84x = 27,432.51 × 14,857.39
  4. Step 4: Simplify right side
    19,900.84x = 407,575,499.75
  5. Step 5: Solve for x
    x = 407,575,499.75/19,900.84
  6. Step 6: Final answer
    x = 20,480.32

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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.