Home / 28,055.08-42,086.64-9,328.96

Finding the Fourth Proportional to 28,055.08, 42,086.64 and 9,328.96

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Solution

The fourth proportional to 28,055.08, 42,086.64 and 9,328.96 is: 13,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.08 : 42,086.64 = 9,328.96 : x
  2. Step 2: Convert to fraction form
    28,055.08/42,086.64 = 9,328.96/x
  3. Step 3: Cross multiply
    28,055.08x = 42,086.64 × 9,328.96
  4. Step 4: Simplify right side
    28,055.08x = 392,624,581.09
  5. Step 5: Solve for x
    x = 392,624,581.09/28,055.08
  6. Step 6: Final answer
    x = 13,994.78

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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.