Home / 47,802.60-65,983.95-28,939.71

Finding the Fourth Proportional to 47,802.60, 65,983.95 and 28,939.71

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Solution

The fourth proportional to 47,802.60, 65,983.95 and 28,939.71 is: 39,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,802.60 : 65,983.95 = 28,939.71 : x
  2. Step 2: Convert to fraction form
    47,802.60/65,983.95 = 28,939.71/x
  3. Step 3: Cross multiply
    47,802.60x = 65,983.95 × 28,939.71
  4. Step 4: Simplify right side
    47,802.60x = 1,909,556,377.65
  5. Step 5: Solve for x
    x = 1,909,556,377.65/47,802.60
  6. Step 6: Final answer
    x = 39,946.71

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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.