Home / 30,807.37-42,513.13-17,378.13

Finding the Fourth Proportional to 30,807.37, 42,513.13 and 17,378.13

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Solution

The fourth proportional to 30,807.37, 42,513.13 and 17,378.13 is: 23,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.37 : 42,513.13 = 17,378.13 : x
  2. Step 2: Convert to fraction form
    30,807.37/42,513.13 = 17,378.13/x
  3. Step 3: Cross multiply
    30,807.37x = 42,513.13 × 17,378.13
  4. Step 4: Simplify right side
    30,807.37x = 738,798,699.85
  5. Step 5: Solve for x
    x = 738,798,699.85/30,807.37
  6. Step 6: Final answer
    x = 23,981.23

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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.