Home / 31,547.20-43,513.32-25,579.12

Finding the Fourth Proportional to 31,547.20, 43,513.32 and 25,579.12

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Solution

The fourth proportional to 31,547.20, 43,513.32 and 25,579.12 is: 35,281.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.20 : 43,513.32 = 25,579.12 : x
  2. Step 2: Convert to fraction form
    31,547.20/43,513.32 = 25,579.12/x
  3. Step 3: Cross multiply
    31,547.20x = 43,513.32 × 25,579.12
  4. Step 4: Simplify right side
    31,547.20x = 1,113,032,433.88
  5. Step 5: Solve for x
    x = 1,113,032,433.88/31,547.20
  6. Step 6: Final answer
    x = 35,281.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.