Home / 27,435.23-37,861.40-15,499.07

Finding the Fourth Proportional to 27,435.23, 37,861.40 and 15,499.07

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Solution

The fourth proportional to 27,435.23, 37,861.40 and 15,499.07 is: 21,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,435.23 : 37,861.40 = 15,499.07 : x
  2. Step 2: Convert to fraction form
    27,435.23/37,861.40 = 15,499.07/x
  3. Step 3: Cross multiply
    27,435.23x = 37,861.40 × 15,499.07
  4. Step 4: Simplify right side
    27,435.23x = 586,816,488.90
  5. Step 5: Solve for x
    x = 586,816,488.90/27,435.23
  6. Step 6: Final answer
    x = 21,389.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.