Home / 30,212.56-41,683.28-18,271.36

Finding the Fourth Proportional to 30,212.56, 41,683.28 and 18,271.36

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Solution

The fourth proportional to 30,212.56, 41,683.28 and 18,271.36 is: 25,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.56 : 41,683.28 = 18,271.36 : x
  2. Step 2: Convert to fraction form
    30,212.56/41,683.28 = 18,271.36/x
  3. Step 3: Cross multiply
    30,212.56x = 41,683.28 × 18,271.36
  4. Step 4: Simplify right side
    30,212.56x = 761,610,214.86
  5. Step 5: Solve for x
    x = 761,610,214.86/30,212.56
  6. Step 6: Final answer
    x = 25,208.40

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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.