Home / 30,643.02-42,285.09-17,216.51

Finding the Fourth Proportional to 30,643.02, 42,285.09 and 17,216.51

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Solution

The fourth proportional to 30,643.02, 42,285.09 and 17,216.51 is: 23,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.02 : 42,285.09 = 17,216.51 : x
  2. Step 2: Convert to fraction form
    30,643.02/42,285.09 = 17,216.51/x
  3. Step 3: Cross multiply
    30,643.02x = 42,285.09 × 17,216.51
  4. Step 4: Simplify right side
    30,643.02x = 728,001,674.84
  5. Step 5: Solve for x
    x = 728,001,674.84/30,643.02
  6. Step 6: Final answer
    x = 23,757.50

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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.