Home / 30,004.68-41,400.70-18,068.80

Finding the Fourth Proportional to 30,004.68, 41,400.70 and 18,068.80

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Solution

The fourth proportional to 30,004.68, 41,400.70 and 18,068.80 is: 24,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,004.68 : 41,400.70 = 18,068.80 : x
  2. Step 2: Convert to fraction form
    30,004.68/41,400.70 = 18,068.80/x
  3. Step 3: Cross multiply
    30,004.68x = 41,400.70 × 18,068.80
  4. Step 4: Simplify right side
    30,004.68x = 748,060,968.16
  5. Step 5: Solve for x
    x = 748,060,968.16/30,004.68
  6. Step 6: Final answer
    x = 24,931.48

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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.