Home / 30,229.68-41,718.60-19,628.40

Finding the Fourth Proportional to 30,229.68, 41,718.60 and 19,628.40

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Solution

The fourth proportional to 30,229.68, 41,718.60 and 19,628.40 is: 27,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,229.68 : 41,718.60 = 19,628.40 : x
  2. Step 2: Convert to fraction form
    30,229.68/41,718.60 = 19,628.40/x
  3. Step 3: Cross multiply
    30,229.68x = 41,718.60 × 19,628.40
  4. Step 4: Simplify right side
    30,229.68x = 818,869,368.24
  5. Step 5: Solve for x
    x = 818,869,368.24/30,229.68
  6. Step 6: Final answer
    x = 27,088.26

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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.