Home / 19,856.94-29,904.30-18,085.47

Finding the Fourth Proportional to 19,856.94, 29,904.30 and 18,085.47

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Solution

The fourth proportional to 19,856.94, 29,904.30 and 18,085.47 is: 27,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.94 : 29,904.30 = 18,085.47 : x
  2. Step 2: Convert to fraction form
    19,856.94/29,904.30 = 18,085.47/x
  3. Step 3: Cross multiply
    19,856.94x = 29,904.30 × 18,085.47
  4. Step 4: Simplify right side
    19,856.94x = 540,833,320.52
  5. Step 5: Solve for x
    x = 540,833,320.52/19,856.94
  6. Step 6: Final answer
    x = 27,236.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.