Home / 30,637.32-42,278.58-17,208.60

Finding the Fourth Proportional to 30,637.32, 42,278.58 and 17,208.60

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Solution

The fourth proportional to 30,637.32, 42,278.58 and 17,208.60 is: 23,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.32 : 42,278.58 = 17,208.60 : x
  2. Step 2: Convert to fraction form
    30,637.32/42,278.58 = 17,208.60/x
  3. Step 3: Cross multiply
    30,637.32x = 42,278.58 × 17,208.60
  4. Step 4: Simplify right side
    30,637.32x = 727,555,171.79
  5. Step 5: Solve for x
    x = 727,555,171.79/30,637.32
  6. Step 6: Final answer
    x = 23,747.35

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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.