Home / 28,588.30-39,437.34-19,506.85

Finding the Fourth Proportional to 28,588.30, 39,437.34 and 19,506.85

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Solution

The fourth proportional to 28,588.30, 39,437.34 and 19,506.85 is: 26,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.30 : 39,437.34 = 19,506.85 : x
  2. Step 2: Convert to fraction form
    28,588.30/39,437.34 = 19,506.85/x
  3. Step 3: Cross multiply
    28,588.30x = 39,437.34 × 19,506.85
  4. Step 4: Simplify right side
    28,588.30x = 769,298,275.78
  5. Step 5: Solve for x
    x = 769,298,275.78/28,588.30
  6. Step 6: Final answer
    x = 26,909.55

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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.