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Finding the Fourth Proportional to 27,030.40, 40,515.90 and 9,491.20

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Solution

The fourth proportional to 27,030.40, 40,515.90 and 9,491.20 is: 14,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,030.40 : 40,515.90 = 9,491.20 : x
  2. Step 2: Convert to fraction form
    27,030.40/40,515.90 = 9,491.20/x
  3. Step 3: Cross multiply
    27,030.40x = 40,515.90 × 9,491.20
  4. Step 4: Simplify right side
    27,030.40x = 384,544,510.08
  5. Step 5: Solve for x
    x = 384,544,510.08/27,030.40
  6. Step 6: Final answer
    x = 14,226.37

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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.