Home / 28,268.66-42,401.64-9,547.40

Finding the Fourth Proportional to 28,268.66, 42,401.64 and 9,547.40

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Solution

The fourth proportional to 28,268.66, 42,401.64 and 9,547.40 is: 14,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.66 : 42,401.64 = 9,547.40 : x
  2. Step 2: Convert to fraction form
    28,268.66/42,401.64 = 9,547.40/x
  3. Step 3: Cross multiply
    28,268.66x = 42,401.64 × 9,547.40
  4. Step 4: Simplify right side
    28,268.66x = 404,825,417.74
  5. Step 5: Solve for x
    x = 404,825,417.74/28,268.66
  6. Step 6: Final answer
    x = 14,320.64

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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.