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Finding the Fourth Proportional to 27,210.40, 40,808.04 and 7,484.20

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Solution

The fourth proportional to 27,210.40, 40,808.04 and 7,484.20 is: 11,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,210.40 : 40,808.04 = 7,484.20 : x
  2. Step 2: Convert to fraction form
    27,210.40/40,808.04 = 7,484.20/x
  3. Step 3: Cross multiply
    27,210.40x = 40,808.04 × 7,484.20
  4. Step 4: Simplify right side
    27,210.40x = 305,415,532.97
  5. Step 5: Solve for x
    x = 305,415,532.97/27,210.40
  6. Step 6: Final answer
    x = 11,224.22

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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.