Home / 28,657.24-42,983.31-9,936.86

Finding the Fourth Proportional to 28,657.24, 42,983.31 and 9,936.86

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Solution

The fourth proportional to 28,657.24, 42,983.31 and 9,936.86 is: 14,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.24 : 42,983.31 = 9,936.86 : x
  2. Step 2: Convert to fraction form
    28,657.24/42,983.31 = 9,936.86/x
  3. Step 3: Cross multiply
    28,657.24x = 42,983.31 × 9,936.86
  4. Step 4: Simplify right side
    28,657.24x = 427,119,051.19
  5. Step 5: Solve for x
    x = 427,119,051.19/28,657.24
  6. Step 6: Final answer
    x = 14,904.40

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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.