Home / 30,766.28-42,457.49-16,619.13

Finding the Fourth Proportional to 30,766.28, 42,457.49 and 16,619.13

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Solution

The fourth proportional to 30,766.28, 42,457.49 and 16,619.13 is: 22,934.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766.28 : 42,457.49 = 16,619.13 : x
  2. Step 2: Convert to fraction form
    30,766.28/42,457.49 = 16,619.13/x
  3. Step 3: Cross multiply
    30,766.28x = 42,457.49 × 16,619.13
  4. Step 4: Simplify right side
    30,766.28x = 705,606,462.69
  5. Step 5: Solve for x
    x = 705,606,462.69/30,766.28
  6. Step 6: Final answer
    x = 22,934.41

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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.