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Finding the Fourth Proportional to 34,187.79, 51,113.10 and 28,980.91

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Solution

The fourth proportional to 34,187.79, 51,113.10 and 28,980.91 is: 43,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,187.79 : 51,113.10 = 28,980.91 : x
  2. Step 2: Convert to fraction form
    34,187.79/51,113.10 = 28,980.91/x
  3. Step 3: Cross multiply
    34,187.79x = 51,113.10 × 28,980.91
  4. Step 4: Simplify right side
    34,187.79x = 1,481,304,323.49
  5. Step 5: Solve for x
    x = 1,481,304,323.49/34,187.79
  6. Step 6: Final answer
    x = 43,328.46

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1.5x scale

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.