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Finding the Fourth Proportional to 27,095.70, 40,643.55 and 20,534.70

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Solution

The fourth proportional to 27,095.70, 40,643.55 and 20,534.70 is: 30,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,095.70 : 40,643.55 = 20,534.70 : x
  2. Step 2: Convert to fraction form
    27,095.70/40,643.55 = 20,534.70/x
  3. Step 3: Cross multiply
    27,095.70x = 40,643.55 × 20,534.70
  4. Step 4: Simplify right side
    27,095.70x = 834,603,106.19
  5. Step 5: Solve for x
    x = 834,603,106.19/27,095.70
  6. Step 6: Final answer
    x = 30,802.05

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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.