Home / 28,580.16-39,454.08-19,154.88

Finding the Fourth Proportional to 28,580.16, 39,454.08 and 19,154.88

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Solution

The fourth proportional to 28,580.16, 39,454.08 and 19,154.88 is: 26,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.16 : 39,454.08 = 19,154.88 : x
  2. Step 2: Convert to fraction form
    28,580.16/39,454.08 = 19,154.88/x
  3. Step 3: Cross multiply
    28,580.16x = 39,454.08 × 19,154.88
  4. Step 4: Simplify right side
    28,580.16x = 755,738,167.91
  5. Step 5: Solve for x
    x = 755,738,167.91/28,580.16
  6. Step 6: Final answer
    x = 26,442.75

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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.