Home / 28,299.54-42,384.59-13,518.84

Finding the Fourth Proportional to 28,299.54, 42,384.59 and 13,518.84

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Solution

The fourth proportional to 28,299.54, 42,384.59 and 13,518.84 is: 20,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.54 : 42,384.59 = 13,518.84 : x
  2. Step 2: Convert to fraction form
    28,299.54/42,384.59 = 13,518.84/x
  3. Step 3: Cross multiply
    28,299.54x = 42,384.59 × 13,518.84
  4. Step 4: Simplify right side
    28,299.54x = 572,990,423.08
  5. Step 5: Solve for x
    x = 572,990,423.08/28,299.54
  6. Step 6: Final answer
    x = 20,247.34

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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.