Home / 40,314.30-60,389.10-19,190.40

Finding the Fourth Proportional to 40,314.30, 60,389.10 and 19,190.40

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Solution

The fourth proportional to 40,314.30, 60,389.10 and 19,190.40 is: 28,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,314.30 : 60,389.10 = 19,190.40 : x
  2. Step 2: Convert to fraction form
    40,314.30/60,389.10 = 19,190.40/x
  3. Step 3: Cross multiply
    40,314.30x = 60,389.10 × 19,190.40
  4. Step 4: Simplify right side
    40,314.30x = 1,158,890,984.64
  5. Step 5: Solve for x
    x = 1,158,890,984.64/40,314.30
  6. Step 6: Final answer
    x = 28,746.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.