Home / 27,381.79-37,785.30-15,444.42

Finding the Fourth Proportional to 27,381.79, 37,785.30 and 15,444.42

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Solution

The fourth proportional to 27,381.79, 37,785.30 and 15,444.42 is: 21,312.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.79 : 37,785.30 = 15,444.42 : x
  2. Step 2: Convert to fraction form
    27,381.79/37,785.30 = 15,444.42/x
  3. Step 3: Cross multiply
    27,381.79x = 37,785.30 × 15,444.42
  4. Step 4: Simplify right side
    27,381.79x = 583,571,967.87
  5. Step 5: Solve for x
    x = 583,571,967.87/27,381.79
  6. Step 6: Final answer
    x = 21,312.41

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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.