Home / 30,762.13-42,454.89-18,833.35

Finding the Fourth Proportional to 30,762.13, 42,454.89 and 18,833.35

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Solution

The fourth proportional to 30,762.13, 42,454.89 and 18,833.35 is: 25,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,762.13 : 42,454.89 = 18,833.35 : x
  2. Step 2: Convert to fraction form
    30,762.13/42,454.89 = 18,833.35/x
  3. Step 3: Cross multiply
    30,762.13x = 42,454.89 × 18,833.35
  4. Step 4: Simplify right side
    30,762.13x = 799,567,802.58
  5. Step 5: Solve for x
    x = 799,567,802.58/30,762.13
  6. Step 6: Final answer
    x = 25,991.95

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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.