Home / 26,485.28-39,881.84-19,139.84

Finding the Fourth Proportional to 26,485.28, 39,881.84 and 19,139.84

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Solution

The fourth proportional to 26,485.28, 39,881.84 and 19,139.84 is: 28,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,485.28 : 39,881.84 = 19,139.84 : x
  2. Step 2: Convert to fraction form
    26,485.28/39,881.84 = 19,139.84/x
  3. Step 3: Cross multiply
    26,485.28x = 39,881.84 × 19,139.84
  4. Step 4: Simplify right side
    26,485.28x = 763,332,036.51
  5. Step 5: Solve for x
    x = 763,332,036.51/26,485.28
  6. Step 6: Final answer
    x = 28,820.99

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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.