Home / 28,325.35-42,485.57-13,328.91

Finding the Fourth Proportional to 28,325.35, 42,485.57 and 13,328.91

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Solution

The fourth proportional to 28,325.35, 42,485.57 and 13,328.91 is: 19,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.35 : 42,485.57 = 13,328.91 : x
  2. Step 2: Convert to fraction form
    28,325.35/42,485.57 = 13,328.91/x
  3. Step 3: Cross multiply
    28,325.35x = 42,485.57 × 13,328.91
  4. Step 4: Simplify right side
    28,325.35x = 566,286,272.18
  5. Step 5: Solve for x
    x = 566,286,272.18/28,325.35
  6. Step 6: Final answer
    x = 19,992.21

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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.