Home / 30,994.71-42,772.48-17,565.85

Finding the Fourth Proportional to 30,994.71, 42,772.48 and 17,565.85

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Solution

The fourth proportional to 30,994.71, 42,772.48 and 17,565.85 is: 24,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,994.71 : 42,772.48 = 17,565.85 : x
  2. Step 2: Convert to fraction form
    30,994.71/42,772.48 = 17,565.85/x
  3. Step 3: Cross multiply
    30,994.71x = 42,772.48 × 17,565.85
  4. Step 4: Simplify right side
    30,994.71x = 751,334,967.81
  5. Step 5: Solve for x
    x = 751,334,967.81/30,994.71
  6. Step 6: Final answer
    x = 24,240.75

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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.