Home / 29,547.09-40,784.08-18,220.14

Finding the Fourth Proportional to 29,547.09, 40,784.08 and 18,220.14

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Solution

The fourth proportional to 29,547.09, 40,784.08 and 18,220.14 is: 25,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,547.09 : 40,784.08 = 18,220.14 : x
  2. Step 2: Convert to fraction form
    29,547.09/40,784.08 = 18,220.14/x
  3. Step 3: Cross multiply
    29,547.09x = 40,784.08 × 18,220.14
  4. Step 4: Simplify right side
    29,547.09x = 743,091,647.37
  5. Step 5: Solve for x
    x = 743,091,647.37/29,547.09
  6. Step 6: Final answer
    x = 25,149.40

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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.