Home / 28,437.33-39,244.29-15,690.69

Finding the Fourth Proportional to 28,437.33, 39,244.29 and 15,690.69

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Solution

The fourth proportional to 28,437.33, 39,244.29 and 15,690.69 is: 21,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.33 : 39,244.29 = 15,690.69 : x
  2. Step 2: Convert to fraction form
    28,437.33/39,244.29 = 15,690.69/x
  3. Step 3: Cross multiply
    28,437.33x = 39,244.29 × 15,690.69
  4. Step 4: Simplify right side
    28,437.33x = 615,769,988.66
  5. Step 5: Solve for x
    x = 615,769,988.66/28,437.33
  6. Step 6: Final answer
    x = 21,653.58

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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.