Home / 30,636.23-42,282.91-28,635.12

Finding the Fourth Proportional to 30,636.23, 42,282.91 and 28,635.12

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Solution

The fourth proportional to 30,636.23, 42,282.91 and 28,635.12 is: 39,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.23 : 42,282.91 = 28,635.12 : x
  2. Step 2: Convert to fraction form
    30,636.23/42,282.91 = 28,635.12/x
  3. Step 3: Cross multiply
    30,636.23x = 42,282.91 × 28,635.12
  4. Step 4: Simplify right side
    30,636.23x = 1,210,776,237.59
  5. Step 5: Solve for x
    x = 1,210,776,237.59/30,636.23
  6. Step 6: Final answer
    x = 39,521.06

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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.