Home / 28,547.06-39,395.04-15,971

Finding the Fourth Proportional to 28,547.06, 39,395.04 and 15,971

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Solution

The fourth proportional to 28,547.06, 39,395.04 and 15,971 is: 22,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.06 : 39,395.04 = 15,971 : x
  2. Step 2: Convert to fraction form
    28,547.06/39,395.04 = 15,971/x
  3. Step 3: Cross multiply
    28,547.06x = 39,395.04 × 15,971
  4. Step 4: Simplify right side
    28,547.06x = 629,178,183.84
  5. Step 5: Solve for x
    x = 629,178,183.84/28,547.06
  6. Step 6: Final answer
    x = 22,040.03

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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.