Home / 28,485.22-42,729.65-10,955.05

Finding the Fourth Proportional to 28,485.22, 42,729.65 and 10,955.05

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Solution

The fourth proportional to 28,485.22, 42,729.65 and 10,955.05 is: 16,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.22 : 42,729.65 = 10,955.05 : x
  2. Step 2: Convert to fraction form
    28,485.22/42,729.65 = 10,955.05/x
  3. Step 3: Cross multiply
    28,485.22x = 42,729.65 × 10,955.05
  4. Step 4: Simplify right side
    28,485.22x = 468,105,362.53
  5. Step 5: Solve for x
    x = 468,105,362.53/28,485.22
  6. Step 6: Final answer
    x = 16,433.27

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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.