Home / 28,464.09-42,684.26-9,740.31

Finding the Fourth Proportional to 28,464.09, 42,684.26 and 9,740.31

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Solution

The fourth proportional to 28,464.09, 42,684.26 and 9,740.31 is: 14,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.09 : 42,684.26 = 9,740.31 : x
  2. Step 2: Convert to fraction form
    28,464.09/42,684.26 = 9,740.31/x
  3. Step 3: Cross multiply
    28,464.09x = 42,684.26 × 9,740.31
  4. Step 4: Simplify right side
    28,464.09x = 415,757,875.82
  5. Step 5: Solve for x
    x = 415,757,875.82/28,464.09
  6. Step 6: Final answer
    x = 14,606.40

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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.