Home / 28,424.08-39,219.24-20,483.92

Finding the Fourth Proportional to 28,424.08, 39,219.24 and 20,483.92

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Solution

The fourth proportional to 28,424.08, 39,219.24 and 20,483.92 is: 28,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.08 : 39,219.24 = 20,483.92 : x
  2. Step 2: Convert to fraction form
    28,424.08/39,219.24 = 20,483.92/x
  3. Step 3: Cross multiply
    28,424.08x = 39,219.24 × 20,483.92
  4. Step 4: Simplify right side
    28,424.08x = 803,363,774.62
  5. Step 5: Solve for x
    x = 803,363,774.62/28,424.08
  6. Step 6: Final answer
    x = 28,263.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.