Home / 34,685.20-47,866.53-21,068.64

Finding the Fourth Proportional to 34,685.20, 47,866.53 and 21,068.64

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Solution

The fourth proportional to 34,685.20, 47,866.53 and 21,068.64 is: 29,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.20 : 47,866.53 = 21,068.64 : x
  2. Step 2: Convert to fraction form
    34,685.20/47,866.53 = 21,068.64/x
  3. Step 3: Cross multiply
    34,685.20x = 47,866.53 × 21,068.64
  4. Step 4: Simplify right side
    34,685.20x = 1,008,482,767.63
  5. Step 5: Solve for x
    x = 1,008,482,767.63/34,685.20
  6. Step 6: Final answer
    x = 29,075.30

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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.