Home / 28,502.26-42,753.40-7,725.76

Finding the Fourth Proportional to 28,502.26, 42,753.40 and 7,725.76

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Solution

The fourth proportional to 28,502.26, 42,753.40 and 7,725.76 is: 11,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.26 : 42,753.40 = 7,725.76 : x
  2. Step 2: Convert to fraction form
    28,502.26/42,753.40 = 7,725.76/x
  3. Step 3: Cross multiply
    28,502.26x = 42,753.40 × 7,725.76
  4. Step 4: Simplify right side
    28,502.26x = 330,302,507.58
  5. Step 5: Solve for x
    x = 330,302,507.58/28,502.26
  6. Step 6: Final answer
    x = 11,588.64

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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.