Home / 27,381.40-37,783.60-15,446.86

Finding the Fourth Proportional to 27,381.40, 37,783.60 and 15,446.86

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Solution

The fourth proportional to 27,381.40, 37,783.60 and 15,446.86 is: 21,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.40 : 37,783.60 = 15,446.86 : x
  2. Step 2: Convert to fraction form
    27,381.40/37,783.60 = 15,446.86/x
  3. Step 3: Cross multiply
    27,381.40x = 37,783.60 × 15,446.86
  4. Step 4: Simplify right side
    27,381.40x = 583,637,846.42
  5. Step 5: Solve for x
    x = 583,637,846.42/27,381.40
  6. Step 6: Final answer
    x = 21,315.12

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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.