Home / 28,771.20-39,657.60-23,457.60

Finding the Fourth Proportional to 28,771.20, 39,657.60 and 23,457.60

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Solution

The fourth proportional to 28,771.20, 39,657.60 and 23,457.60 is: 32,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.20 : 39,657.60 = 23,457.60 : x
  2. Step 2: Convert to fraction form
    28,771.20/39,657.60 = 23,457.60/x
  3. Step 3: Cross multiply
    28,771.20x = 39,657.60 × 23,457.60
  4. Step 4: Simplify right side
    28,771.20x = 930,272,117.76
  5. Step 5: Solve for x
    x = 930,272,117.76/28,771.20
  6. Step 6: Final answer
    x = 32,333.45

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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.