Home / 27,518.40-37,920.89-19,538.28

Finding the Fourth Proportional to 27,518.40, 37,920.89 and 19,538.28

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Solution

The fourth proportional to 27,518.40, 37,920.89 and 19,538.28 is: 26,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,518.40 : 37,920.89 = 19,538.28 : x
  2. Step 2: Convert to fraction form
    27,518.40/37,920.89 = 19,538.28/x
  3. Step 3: Cross multiply
    27,518.40x = 37,920.89 × 19,538.28
  4. Step 4: Simplify right side
    27,518.40x = 740,909,015.51
  5. Step 5: Solve for x
    x = 740,909,015.51/27,518.40
  6. Step 6: Final answer
    x = 26,924.13

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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.