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Finding the Fourth Proportional to 37,457.99, 56,168.17 and 12,489.20

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Solution

The fourth proportional to 37,457.99, 56,168.17 and 12,489.20 is: 18,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,457.99 : 56,168.17 = 12,489.20 : x
  2. Step 2: Convert to fraction form
    37,457.99/56,168.17 = 12,489.20/x
  3. Step 3: Cross multiply
    37,457.99x = 56,168.17 × 12,489.20
  4. Step 4: Simplify right side
    37,457.99x = 701,495,477.58
  5. Step 5: Solve for x
    x = 701,495,477.58/37,457.99
  6. Step 6: Final answer
    x = 18,727.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.