Home / 28,652.54-42,970.50-12,012.12

Finding the Fourth Proportional to 28,652.54, 42,970.50 and 12,012.12

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Solution

The fourth proportional to 28,652.54, 42,970.50 and 12,012.12 is: 18,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.54 : 42,970.50 = 12,012.12 : x
  2. Step 2: Convert to fraction form
    28,652.54/42,970.50 = 12,012.12/x
  3. Step 3: Cross multiply
    28,652.54x = 42,970.50 × 12,012.12
  4. Step 4: Simplify right side
    28,652.54x = 516,166,802.46
  5. Step 5: Solve for x
    x = 516,166,802.46/28,652.54
  6. Step 6: Final answer
    x = 18,014.70

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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.