Home / 28,443.76-42,670.60-9,725.67

Finding the Fourth Proportional to 28,443.76, 42,670.60 and 9,725.67

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Solution

The fourth proportional to 28,443.76, 42,670.60 and 9,725.67 is: 14,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.76 : 42,670.60 = 9,725.67 : x
  2. Step 2: Convert to fraction form
    28,443.76/42,670.60 = 9,725.67/x
  3. Step 3: Cross multiply
    28,443.76x = 42,670.60 × 9,725.67
  4. Step 4: Simplify right side
    28,443.76x = 415,000,149.99
  5. Step 5: Solve for x
    x = 415,000,149.99/28,443.76
  6. Step 6: Final answer
    x = 14,590.20

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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.