Home / 28,691.64-43,036.26-9,975.92

Finding the Fourth Proportional to 28,691.64, 43,036.26 and 9,975.92

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Solution

The fourth proportional to 28,691.64, 43,036.26 and 9,975.92 is: 14,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.64 : 43,036.26 = 9,975.92 : x
  2. Step 2: Convert to fraction form
    28,691.64/43,036.26 = 9,975.92/x
  3. Step 3: Cross multiply
    28,691.64x = 43,036.26 × 9,975.92
  4. Step 4: Simplify right side
    28,691.64x = 429,326,071.68
  5. Step 5: Solve for x
    x = 429,326,071.68/28,691.64
  6. Step 6: Final answer
    x = 14,963.46

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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.