Home / 36,038.18-49,730.54-20,929.80

Finding the Fourth Proportional to 36,038.18, 49,730.54 and 20,929.80

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Solution

The fourth proportional to 36,038.18, 49,730.54 and 20,929.80 is: 28,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,038.18 : 49,730.54 = 20,929.80 : x
  2. Step 2: Convert to fraction form
    36,038.18/49,730.54 = 20,929.80/x
  3. Step 3: Cross multiply
    36,038.18x = 49,730.54 × 20,929.80
  4. Step 4: Simplify right side
    36,038.18x = 1,040,850,256.09
  5. Step 5: Solve for x
    x = 1,040,850,256.09/36,038.18
  6. Step 6: Final answer
    x = 28,881.88

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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.