Home / 30,766.23-42,457.40-16,619.07

Finding the Fourth Proportional to 30,766.23, 42,457.40 and 16,619.07

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Solution

The fourth proportional to 30,766.23, 42,457.40 and 16,619.07 is: 22,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766.23 : 42,457.40 = 16,619.07 : x
  2. Step 2: Convert to fraction form
    30,766.23/42,457.40 = 16,619.07/x
  3. Step 3: Cross multiply
    30,766.23x = 42,457.40 × 16,619.07
  4. Step 4: Simplify right side
    30,766.23x = 705,602,419.52
  5. Step 5: Solve for x
    x = 705,602,419.52/30,766.23
  6. Step 6: Final answer
    x = 22,934.32

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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.