Home / 27,987.48-41,979.78-10,455.93

Finding the Fourth Proportional to 27,987.48, 41,979.78 and 10,455.93

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Solution

The fourth proportional to 27,987.48, 41,979.78 and 10,455.93 is: 15,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.48 : 41,979.78 = 10,455.93 : x
  2. Step 2: Convert to fraction form
    27,987.48/41,979.78 = 10,455.93/x
  3. Step 3: Cross multiply
    27,987.48x = 41,979.78 × 10,455.93
  4. Step 4: Simplify right side
    27,987.48x = 438,937,641.10
  5. Step 5: Solve for x
    x = 438,937,641.10/27,987.48
  6. Step 6: Final answer
    x = 15,683.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.