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Finding the Fourth Proportional to 27,132.30, 40,698.45 and 19,259.10

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Solution

The fourth proportional to 27,132.30, 40,698.45 and 19,259.10 is: 28,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,132.30 : 40,698.45 = 19,259.10 : x
  2. Step 2: Convert to fraction form
    27,132.30/40,698.45 = 19,259.10/x
  3. Step 3: Cross multiply
    27,132.30x = 40,698.45 × 19,259.10
  4. Step 4: Simplify right side
    27,132.30x = 783,815,518.40
  5. Step 5: Solve for x
    x = 783,815,518.40/27,132.30
  6. Step 6: Final answer
    x = 28,888.65

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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.