Home / 30,598.70-42,229.53-18,661.93

Finding the Fourth Proportional to 30,598.70, 42,229.53 and 18,661.93

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Solution

The fourth proportional to 30,598.70, 42,229.53 and 18,661.93 is: 25,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,598.70 : 42,229.53 = 18,661.93 : x
  2. Step 2: Convert to fraction form
    30,598.70/42,229.53 = 18,661.93/x
  3. Step 3: Cross multiply
    30,598.70x = 42,229.53 × 18,661.93
  4. Step 4: Simplify right side
    30,598.70x = 788,084,427.22
  5. Step 5: Solve for x
    x = 788,084,427.22/30,598.70
  6. Step 6: Final answer
    x = 25,755.49

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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.