Home / 30,560.55-42,182.52-19,951.77

Finding the Fourth Proportional to 30,560.55, 42,182.52 and 19,951.77

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Solution

The fourth proportional to 30,560.55, 42,182.52 and 19,951.77 is: 27,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.55 : 42,182.52 = 19,951.77 : x
  2. Step 2: Convert to fraction form
    30,560.55/42,182.52 = 19,951.77/x
  3. Step 3: Cross multiply
    30,560.55x = 42,182.52 × 19,951.77
  4. Step 4: Simplify right side
    30,560.55x = 841,615,937.06
  5. Step 5: Solve for x
    x = 841,615,937.06/30,560.55
  6. Step 6: Final answer
    x = 27,539.29

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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.