Home / 30,937.63-42,693.68-16,790.48

Finding the Fourth Proportional to 30,937.63, 42,693.68 and 16,790.48

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Solution

The fourth proportional to 30,937.63, 42,693.68 and 16,790.48 is: 23,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.63 : 42,693.68 = 16,790.48 : x
  2. Step 2: Convert to fraction form
    30,937.63/42,693.68 = 16,790.48/x
  3. Step 3: Cross multiply
    30,937.63x = 42,693.68 × 16,790.48
  4. Step 4: Simplify right side
    30,937.63x = 716,847,082.75
  5. Step 5: Solve for x
    x = 716,847,082.75/30,937.63
  6. Step 6: Final answer
    x = 23,170.72

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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.