Home / 27,956.88-38,592.60-19,985.28

Finding the Fourth Proportional to 27,956.88, 38,592.60 and 19,985.28

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Solution

The fourth proportional to 27,956.88, 38,592.60 and 19,985.28 is: 27,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.88 : 38,592.60 = 19,985.28 : x
  2. Step 2: Convert to fraction form
    27,956.88/38,592.60 = 19,985.28/x
  3. Step 3: Cross multiply
    27,956.88x = 38,592.60 × 19,985.28
  4. Step 4: Simplify right side
    27,956.88x = 771,283,916.93
  5. Step 5: Solve for x
    x = 771,283,916.93/27,956.88
  6. Step 6: Final answer
    x = 27,588.34

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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.