Home / 35,449.51-53,189.90-18,805.47

Finding the Fourth Proportional to 35,449.51, 53,189.90 and 18,805.47

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Solution

The fourth proportional to 35,449.51, 53,189.90 and 18,805.47 is: 28,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,449.51 : 53,189.90 = 18,805.47 : x
  2. Step 2: Convert to fraction form
    35,449.51/53,189.90 = 18,805.47/x
  3. Step 3: Cross multiply
    35,449.51x = 53,189.90 × 18,805.47
  4. Step 4: Simplify right side
    35,449.51x = 1,000,261,068.75
  5. Step 5: Solve for x
    x = 1,000,261,068.75/35,449.51
  6. Step 6: Final answer
    x = 28,216.50

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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.