Home / 30,714.93-42,378.12-17,285.40

Finding the Fourth Proportional to 30,714.93, 42,378.12 and 17,285.40

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Solution

The fourth proportional to 30,714.93, 42,378.12 and 17,285.40 is: 23,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.93 : 42,378.12 = 17,285.40 : x
  2. Step 2: Convert to fraction form
    30,714.93/42,378.12 = 17,285.40/x
  3. Step 3: Cross multiply
    30,714.93x = 42,378.12 × 17,285.40
  4. Step 4: Simplify right side
    30,714.93x = 732,522,755.45
  5. Step 5: Solve for x
    x = 732,522,755.45/30,714.93
  6. Step 6: Final answer
    x = 23,849.08

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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.