Home / 27,431.40-37,855.20-14,856.12

Finding the Fourth Proportional to 27,431.40, 37,855.20 and 14,856.12

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Solution

The fourth proportional to 27,431.40, 37,855.20 and 14,856.12 is: 20,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.40 : 37,855.20 = 14,856.12 : x
  2. Step 2: Convert to fraction form
    27,431.40/37,855.20 = 14,856.12/x
  3. Step 3: Cross multiply
    27,431.40x = 37,855.20 × 14,856.12
  4. Step 4: Simplify right side
    27,431.40x = 562,381,393.82
  5. Step 5: Solve for x
    x = 562,381,393.82/27,431.40
  6. Step 6: Final answer
    x = 20,501.37

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Half scale
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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.