Home / 30,937.15-42,693.29-16,790.00

Finding the Fourth Proportional to 30,937.15, 42,693.29 and 16,790.00

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Solution

The fourth proportional to 30,937.15, 42,693.29 and 16,790.00 is: 23,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.15 : 42,693.29 = 16,790.00 : x
  2. Step 2: Convert to fraction form
    30,937.15/42,693.29 = 16,790.00/x
  3. Step 3: Cross multiply
    30,937.15x = 42,693.29 × 16,790.00
  4. Step 4: Simplify right side
    30,937.15x = 716,820,319.16
  5. Step 5: Solve for x
    x = 716,820,319.16/30,937.15
  6. Step 6: Final answer
    x = 23,170.21

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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.