Home / 28,646.88-43,036.20-20,347.08

Finding the Fourth Proportional to 28,646.88, 43,036.20 and 20,347.08

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Solution

The fourth proportional to 28,646.88, 43,036.20 and 20,347.08 is: 30,567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.88 : 43,036.20 = 20,347.08 : x
  2. Step 2: Convert to fraction form
    28,646.88/43,036.20 = 20,347.08/x
  3. Step 3: Cross multiply
    28,646.88x = 43,036.20 × 20,347.08
  4. Step 4: Simplify right side
    28,646.88x = 875,661,004.30
  5. Step 5: Solve for x
    x = 875,661,004.30/28,646.88
  6. Step 6: Final answer
    x = 30,567.41

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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.