Home / 30,574.95-42,175.53-19,226.49

Finding the Fourth Proportional to 30,574.95, 42,175.53 and 19,226.49

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Solution

The fourth proportional to 30,574.95, 42,175.53 and 19,226.49 is: 26,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.95 : 42,175.53 = 19,226.49 : x
  2. Step 2: Convert to fraction form
    30,574.95/42,175.53 = 19,226.49/x
  3. Step 3: Cross multiply
    30,574.95x = 42,175.53 × 19,226.49
  4. Step 4: Simplify right side
    30,574.95x = 810,887,405.79
  5. Step 5: Solve for x
    x = 810,887,405.79/30,574.95
  6. Step 6: Final answer
    x = 26,521.30

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Double scale
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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.