Home / 27,656.37-38,156.67-15,715.35

Finding the Fourth Proportional to 27,656.37, 38,156.67 and 15,715.35

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Solution

The fourth proportional to 27,656.37, 38,156.67 and 15,715.35 is: 21,682.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.37 : 38,156.67 = 15,715.35 : x
  2. Step 2: Convert to fraction form
    27,656.37/38,156.67 = 15,715.35/x
  3. Step 3: Cross multiply
    27,656.37x = 38,156.67 × 15,715.35
  4. Step 4: Simplify right side
    27,656.37x = 599,645,423.88
  5. Step 5: Solve for x
    x = 599,645,423.88/27,656.37
  6. Step 6: Final answer
    x = 21,682.00

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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.