Home / 37,485.13-51,730.68-20,489.00

Finding the Fourth Proportional to 37,485.13, 51,730.68 and 20,489.00

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Solution

The fourth proportional to 37,485.13, 51,730.68 and 20,489.00 is: 28,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.13 : 51,730.68 = 20,489.00 : x
  2. Step 2: Convert to fraction form
    37,485.13/51,730.68 = 20,489.00/x
  3. Step 3: Cross multiply
    37,485.13x = 51,730.68 × 20,489.00
  4. Step 4: Simplify right side
    37,485.13x = 1,059,909,838.81
  5. Step 5: Solve for x
    x = 1,059,909,838.81/37,485.13
  6. Step 6: Final answer
    x = 28,275.48

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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.