Home / 27,130.28-40,688.87-7,408.94

Finding the Fourth Proportional to 27,130.28, 40,688.87 and 7,408.94

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Solution

The fourth proportional to 27,130.28, 40,688.87 and 7,408.94 is: 11,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,130.28 : 40,688.87 = 7,408.94 : x
  2. Step 2: Convert to fraction form
    27,130.28/40,688.87 = 7,408.94/x
  3. Step 3: Cross multiply
    27,130.28x = 40,688.87 × 7,408.94
  4. Step 4: Simplify right side
    27,130.28x = 301,461,156.01
  5. Step 5: Solve for x
    x = 301,461,156.01/27,130.28
  6. Step 6: Final answer
    x = 11,111.61

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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.