Home / 39,678.83-54,756.76-22,683.45

Finding the Fourth Proportional to 39,678.83, 54,756.76 and 22,683.45

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Solution

The fourth proportional to 39,678.83, 54,756.76 and 22,683.45 is: 31,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.83 : 54,756.76 = 22,683.45 : x
  2. Step 2: Convert to fraction form
    39,678.83/54,756.76 = 22,683.45/x
  3. Step 3: Cross multiply
    39,678.83x = 54,756.76 × 22,683.45
  4. Step 4: Simplify right side
    39,678.83x = 1,242,072,114.20
  5. Step 5: Solve for x
    x = 1,242,072,114.20/39,678.83
  6. Step 6: Final answer
    x = 31,303.14

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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.