Home / 28,071.19-38,738.25-15,495.94

Finding the Fourth Proportional to 28,071.19, 38,738.25 and 15,495.94

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Solution

The fourth proportional to 28,071.19, 38,738.25 and 15,495.94 is: 21,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.19 : 38,738.25 = 15,495.94 : x
  2. Step 2: Convert to fraction form
    28,071.19/38,738.25 = 15,495.94/x
  3. Step 3: Cross multiply
    28,071.19x = 38,738.25 × 15,495.94
  4. Step 4: Simplify right side
    28,071.19x = 600,285,500.86
  5. Step 5: Solve for x
    x = 600,285,500.86/28,071.19
  6. Step 6: Final answer
    x = 21,384.40

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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.