Home / 38,655.13-53,344.07-21,891.37

Finding the Fourth Proportional to 38,655.13, 53,344.07 and 21,891.37

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Solution

The fourth proportional to 38,655.13, 53,344.07 and 21,891.37 is: 30,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.13 : 53,344.07 = 21,891.37 : x
  2. Step 2: Convert to fraction form
    38,655.13/53,344.07 = 21,891.37/x
  3. Step 3: Cross multiply
    38,655.13x = 53,344.07 × 21,891.37
  4. Step 4: Simplify right side
    38,655.13x = 1,167,774,561.68
  5. Step 5: Solve for x
    x = 1,167,774,561.68/38,655.13
  6. Step 6: Final answer
    x = 30,210.08

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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.