Home / 30,457.68-45,703.80-12,002.64

Finding the Fourth Proportional to 30,457.68, 45,703.80 and 12,002.64

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Solution

The fourth proportional to 30,457.68, 45,703.80 and 12,002.64 is: 18,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457.68 : 45,703.80 = 12,002.64 : x
  2. Step 2: Convert to fraction form
    30,457.68/45,703.80 = 12,002.64/x
  3. Step 3: Cross multiply
    30,457.68x = 45,703.80 × 12,002.64
  4. Step 4: Simplify right side
    30,457.68x = 548,566,258.03
  5. Step 5: Solve for x
    x = 548,566,258.03/30,457.68
  6. Step 6: Final answer
    x = 18,010.77

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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.