Home / 27,065.81-37,347.76-15,128.75

Finding the Fourth Proportional to 27,065.81, 37,347.76 and 15,128.75

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Solution

The fourth proportional to 27,065.81, 37,347.76 and 15,128.75 is: 20,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,065.81 : 37,347.76 = 15,128.75 : x
  2. Step 2: Convert to fraction form
    27,065.81/37,347.76 = 15,128.75/x
  3. Step 3: Cross multiply
    27,065.81x = 37,347.76 × 15,128.75
  4. Step 4: Simplify right side
    27,065.81x = 565,024,924.10
  5. Step 5: Solve for x
    x = 565,024,924.10/27,065.81
  6. Step 6: Final answer
    x = 20,875.97

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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.