Home / 30,990.90-46,466.64-14,328.66

Finding the Fourth Proportional to 30,990.90, 46,466.64 and 14,328.66

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Solution

The fourth proportional to 30,990.90, 46,466.64 and 14,328.66 is: 21,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.90 : 46,466.64 = 14,328.66 : x
  2. Step 2: Convert to fraction form
    30,990.90/46,466.64 = 14,328.66/x
  3. Step 3: Cross multiply
    30,990.90x = 46,466.64 × 14,328.66
  4. Step 4: Simplify right side
    30,990.90x = 665,804,685.90
  5. Step 5: Solve for x
    x = 665,804,685.90/30,990.90
  6. Step 6: Final answer
    x = 21,483.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.