Home / 30,886.20-42,623.28-17,457.60

Finding the Fourth Proportional to 30,886.20, 42,623.28 and 17,457.60

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Solution

The fourth proportional to 30,886.20, 42,623.28 and 17,457.60 is: 24,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.20 : 42,623.28 = 17,457.60 : x
  2. Step 2: Convert to fraction form
    30,886.20/42,623.28 = 17,457.60/x
  3. Step 3: Cross multiply
    30,886.20x = 42,623.28 × 17,457.60
  4. Step 4: Simplify right side
    30,886.20x = 744,100,172.93
  5. Step 5: Solve for x
    x = 744,100,172.93/30,886.20
  6. Step 6: Final answer
    x = 24,091.67

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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.