Home / 30,754.49-42,444.33-18,825.71

Finding the Fourth Proportional to 30,754.49, 42,444.33 and 18,825.71

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Solution

The fourth proportional to 30,754.49, 42,444.33 and 18,825.71 is: 25,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,754.49 : 42,444.33 = 18,825.71 : x
  2. Step 2: Convert to fraction form
    30,754.49/42,444.33 = 18,825.71/x
  3. Step 3: Cross multiply
    30,754.49x = 42,444.33 × 18,825.71
  4. Step 4: Simplify right side
    30,754.49x = 799,044,647.72
  5. Step 5: Solve for x
    x = 799,044,647.72/30,754.49
  6. Step 6: Final answer
    x = 25,981.40

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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.