Home / 27,792.25-38,345.73-15,851.23

Finding the Fourth Proportional to 27,792.25, 38,345.73 and 15,851.23

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Solution

The fourth proportional to 27,792.25, 38,345.73 and 15,851.23 is: 21,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,792.25 : 38,345.73 = 15,851.23 : x
  2. Step 2: Convert to fraction form
    27,792.25/38,345.73 = 15,851.23/x
  3. Step 3: Cross multiply
    27,792.25x = 38,345.73 × 15,851.23
  4. Step 4: Simplify right side
    27,792.25x = 607,826,985.75
  5. Step 5: Solve for x
    x = 607,826,985.75/27,792.25
  6. Step 6: Final answer
    x = 21,870.38

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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.