Home / 30,726.50-46,128.65-18,851.09

Finding the Fourth Proportional to 30,726.50, 46,128.65 and 18,851.09

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Solution

The fourth proportional to 30,726.50, 46,128.65 and 18,851.09 is: 28,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.50 : 46,128.65 = 18,851.09 : x
  2. Step 2: Convert to fraction form
    30,726.50/46,128.65 = 18,851.09/x
  3. Step 3: Cross multiply
    30,726.50x = 46,128.65 × 18,851.09
  4. Step 4: Simplify right side
    30,726.50x = 869,575,007.83
  5. Step 5: Solve for x
    x = 869,575,007.83/30,726.50
  6. Step 6: Final answer
    x = 28,300.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.