Home / 27,420.09-41,130.15-9,889.92

Finding the Fourth Proportional to 27,420.09, 41,130.15 and 9,889.92

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Solution

The fourth proportional to 27,420.09, 41,130.15 and 9,889.92 is: 14,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.09 : 41,130.15 = 9,889.92 : x
  2. Step 2: Convert to fraction form
    27,420.09/41,130.15 = 9,889.92/x
  3. Step 3: Cross multiply
    27,420.09x = 41,130.15 × 9,889.92
  4. Step 4: Simplify right side
    27,420.09x = 406,773,856.00
  5. Step 5: Solve for x
    x = 406,773,856.00/27,420.09
  6. Step 6: Final answer
    x = 14,834.88

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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.