Home / 30,776.81-42,471.98-16,629.65

Finding the Fourth Proportional to 30,776.81, 42,471.98 and 16,629.65

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Solution

The fourth proportional to 30,776.81, 42,471.98 and 16,629.65 is: 22,948.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,776.81 : 42,471.98 = 16,629.65 : x
  2. Step 2: Convert to fraction form
    30,776.81/42,471.98 = 16,629.65/x
  3. Step 3: Cross multiply
    30,776.81x = 42,471.98 × 16,629.65
  4. Step 4: Simplify right side
    30,776.81x = 706,294,162.21
  5. Step 5: Solve for x
    x = 706,294,162.21/30,776.81
  6. Step 6: Final answer
    x = 22,948.91

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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.