Home / 30,479.96-42,061.38-17,051.45

Finding the Fourth Proportional to 30,479.96, 42,061.38 and 17,051.45

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Solution

The fourth proportional to 30,479.96, 42,061.38 and 17,051.45 is: 23,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.96 : 42,061.38 = 17,051.45 : x
  2. Step 2: Convert to fraction form
    30,479.96/42,061.38 = 17,051.45/x
  3. Step 3: Cross multiply
    30,479.96x = 42,061.38 × 17,051.45
  4. Step 4: Simplify right side
    30,479.96x = 717,207,518.00
  5. Step 5: Solve for x
    x = 717,207,518.00/30,479.96
  6. Step 6: Final answer
    x = 23,530.46

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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.