Home / 19,931.16-27,502.61-11,432.84

Finding the Fourth Proportional to 19,931.16, 27,502.61 and 11,432.84

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Solution

The fourth proportional to 19,931.16, 27,502.61 and 11,432.84 is: 15,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.16 : 27,502.61 = 11,432.84 : x
  2. Step 2: Convert to fraction form
    19,931.16/27,502.61 = 11,432.84/x
  3. Step 3: Cross multiply
    19,931.16x = 27,502.61 × 11,432.84
  4. Step 4: Simplify right side
    19,931.16x = 314,432,745.04
  5. Step 5: Solve for x
    x = 314,432,745.04/19,931.16
  6. Step 6: Final answer
    x = 15,775.94

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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.