Home / 53,019.36-79,538.70-21,837.60

Finding the Fourth Proportional to 53,019.36, 79,538.70 and 21,837.60

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Solution

The fourth proportional to 53,019.36, 79,538.70 and 21,837.60 is: 32,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.36 : 79,538.70 = 21,837.60 : x
  2. Step 2: Convert to fraction form
    53,019.36/79,538.70 = 21,837.60/x
  3. Step 3: Cross multiply
    53,019.36x = 79,538.70 × 21,837.60
  4. Step 4: Simplify right side
    53,019.36x = 1,736,934,315.12
  5. Step 5: Solve for x
    x = 1,736,934,315.12/53,019.36
  6. Step 6: Final answer
    x = 32,760.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.