Home / 30,886.22-42,600.48-19,557.56

Finding the Fourth Proportional to 30,886.22, 42,600.48 and 19,557.56

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Solution

The fourth proportional to 30,886.22, 42,600.48 and 19,557.56 is: 26,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.22 : 42,600.48 = 19,557.56 : x
  2. Step 2: Convert to fraction form
    30,886.22/42,600.48 = 19,557.56/x
  3. Step 3: Cross multiply
    30,886.22x = 42,600.48 × 19,557.56
  4. Step 4: Simplify right side
    30,886.22x = 833,161,443.63
  5. Step 5: Solve for x
    x = 833,161,443.63/30,886.22
  6. Step 6: Final answer
    x = 26,975.18

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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.