Home / 21,010.84-28,994.76-12,627.28

Finding the Fourth Proportional to 21,010.84, 28,994.76 and 12,627.28

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Solution

The fourth proportional to 21,010.84, 28,994.76 and 12,627.28 is: 17,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.84 : 28,994.76 = 12,627.28 : x
  2. Step 2: Convert to fraction form
    21,010.84/28,994.76 = 12,627.28/x
  3. Step 3: Cross multiply
    21,010.84x = 28,994.76 × 12,627.28
  4. Step 4: Simplify right side
    21,010.84x = 366,124,953.05
  5. Step 5: Solve for x
    x = 366,124,953.05/21,010.84
  6. Step 6: Final answer
    x = 17,425.53

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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.