Home / 34,287.89-47,323.46-20,141.51

Finding the Fourth Proportional to 34,287.89, 47,323.46 and 20,141.51

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Solution

The fourth proportional to 34,287.89, 47,323.46 and 20,141.51 is: 27,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,287.89 : 47,323.46 = 20,141.51 : x
  2. Step 2: Convert to fraction form
    34,287.89/47,323.46 = 20,141.51/x
  3. Step 3: Cross multiply
    34,287.89x = 47,323.46 × 20,141.51
  4. Step 4: Simplify right side
    34,287.89x = 953,165,842.12
  5. Step 5: Solve for x
    x = 953,165,842.12/34,287.89
  6. Step 6: Final answer
    x = 27,798.91

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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.