Home / 27,357.93-37,749.81-15,421.08

Finding the Fourth Proportional to 27,357.93, 37,749.81 and 15,421.08

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Solution

The fourth proportional to 27,357.93, 37,749.81 and 15,421.08 is: 21,278.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,357.93 : 37,749.81 = 15,421.08 : x
  2. Step 2: Convert to fraction form
    27,357.93/37,749.81 = 15,421.08/x
  3. Step 3: Cross multiply
    27,357.93x = 37,749.81 × 15,421.08
  4. Step 4: Simplify right side
    27,357.93x = 582,142,839.99
  5. Step 5: Solve for x
    x = 582,142,839.99/27,357.93
  6. Step 6: Final answer
    x = 21,278.76

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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.