Home / 28,647.27-42,970.91-8,925.81

Finding the Fourth Proportional to 28,647.27, 42,970.91 and 8,925.81

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Solution

The fourth proportional to 28,647.27, 42,970.91 and 8,925.81 is: 13,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.27 : 42,970.91 = 8,925.81 : x
  2. Step 2: Convert to fraction form
    28,647.27/42,970.91 = 8,925.81/x
  3. Step 3: Cross multiply
    28,647.27x = 42,970.91 × 8,925.81
  4. Step 4: Simplify right side
    28,647.27x = 383,550,133.56
  5. Step 5: Solve for x
    x = 383,550,133.56/28,647.27
  6. Step 6: Final answer
    x = 13,388.72

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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.