Home / 28,211.37-42,322.41-11,345.67

Finding the Fourth Proportional to 28,211.37, 42,322.41 and 11,345.67

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Solution

The fourth proportional to 28,211.37, 42,322.41 and 11,345.67 is: 17,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.37 : 42,322.41 = 11,345.67 : x
  2. Step 2: Convert to fraction form
    28,211.37/42,322.41 = 11,345.67/x
  3. Step 3: Cross multiply
    28,211.37x = 42,322.41 × 11,345.67
  4. Step 4: Simplify right side
    28,211.37x = 480,176,097.46
  5. Step 5: Solve for x
    x = 480,176,097.46/28,211.37
  6. Step 6: Final answer
    x = 17,020.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.