Home / 30,598.62-42,223.05-18,664.89

Finding the Fourth Proportional to 30,598.62, 42,223.05 and 18,664.89

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Solution

The fourth proportional to 30,598.62, 42,223.05 and 18,664.89 is: 25,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,598.62 : 42,223.05 = 18,664.89 : x
  2. Step 2: Convert to fraction form
    30,598.62/42,223.05 = 18,664.89/x
  3. Step 3: Cross multiply
    30,598.62x = 42,223.05 × 18,664.89
  4. Step 4: Simplify right side
    30,598.62x = 788,088,583.71
  5. Step 5: Solve for x
    x = 788,088,583.71/30,598.62
  6. Step 6: Final answer
    x = 25,755.69

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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.