Home / 28,401.86-42,558.95-17,305.67

Finding the Fourth Proportional to 28,401.86, 42,558.95 and 17,305.67

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Solution

The fourth proportional to 28,401.86, 42,558.95 and 17,305.67 is: 25,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.86 : 42,558.95 = 17,305.67 : x
  2. Step 2: Convert to fraction form
    28,401.86/42,558.95 = 17,305.67/x
  3. Step 3: Cross multiply
    28,401.86x = 42,558.95 × 17,305.67
  4. Step 4: Simplify right side
    28,401.86x = 736,511,293.91
  5. Step 5: Solve for x
    x = 736,511,293.91/28,401.86
  6. Step 6: Final answer
    x = 25,931.80

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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.