Home / 37,043.19-51,122.59-21,128.85

Finding the Fourth Proportional to 37,043.19, 51,122.59 and 21,128.85

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Solution

The fourth proportional to 37,043.19, 51,122.59 and 21,128.85 is: 29,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,043.19 : 51,122.59 = 21,128.85 : x
  2. Step 2: Convert to fraction form
    37,043.19/51,122.59 = 21,128.85/x
  3. Step 3: Cross multiply
    37,043.19x = 51,122.59 × 21,128.85
  4. Step 4: Simplify right side
    37,043.19x = 1,080,161,482.90
  5. Step 5: Solve for x
    x = 1,080,161,482.90/37,043.19
  6. Step 6: Final answer
    x = 29,159.52

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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.