Home / 39,678.99-54,756.98-22,683.61

Finding the Fourth Proportional to 39,678.99, 54,756.98 and 22,683.61

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Solution

The fourth proportional to 39,678.99, 54,756.98 and 22,683.61 is: 31,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.99 : 54,756.98 = 22,683.61 : x
  2. Step 2: Convert to fraction form
    39,678.99/54,756.98 = 22,683.61/x
  3. Step 3: Cross multiply
    39,678.99x = 54,756.98 × 22,683.61
  4. Step 4: Simplify right side
    39,678.99x = 1,242,085,979.10
  5. Step 5: Solve for x
    x = 1,242,085,979.10/39,678.99
  6. Step 6: Final answer
    x = 31,303.37

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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.