Home / 29,175.84-40,238.88-18,547.20

Finding the Fourth Proportional to 29,175.84, 40,238.88 and 18,547.20

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Solution

The fourth proportional to 29,175.84, 40,238.88 and 18,547.20 is: 25,580.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,175.84 : 40,238.88 = 18,547.20 : x
  2. Step 2: Convert to fraction form
    29,175.84/40,238.88 = 18,547.20/x
  3. Step 3: Cross multiply
    29,175.84x = 40,238.88 × 18,547.20
  4. Step 4: Simplify right side
    29,175.84x = 746,318,555.14
  5. Step 5: Solve for x
    x = 746,318,555.14/29,175.84
  6. Step 6: Final answer
    x = 25,580.02

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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.