Home / 47,830.52-66,017.49-28,964

Finding the Fourth Proportional to 47,830.52, 66,017.49 and 28,964

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Solution

The fourth proportional to 47,830.52, 66,017.49 and 28,964 is: 39,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,830.52 : 66,017.49 = 28,964 : x
  2. Step 2: Convert to fraction form
    47,830.52/66,017.49 = 28,964/x
  3. Step 3: Cross multiply
    47,830.52x = 66,017.49 × 28,964
  4. Step 4: Simplify right side
    47,830.52x = 1,912,130,580.36
  5. Step 5: Solve for x
    x = 1,912,130,580.36/47,830.52
  6. Step 6: Final answer
    x = 39,977.21

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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.