Home / 39,029.16-53,860.18-21,124.16

Finding the Fourth Proportional to 39,029.16, 53,860.18 and 21,124.16

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Solution

The fourth proportional to 39,029.16, 53,860.18 and 21,124.16 is: 29,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,029.16 : 53,860.18 = 21,124.16 : x
  2. Step 2: Convert to fraction form
    39,029.16/53,860.18 = 21,124.16/x
  3. Step 3: Cross multiply
    39,029.16x = 53,860.18 × 21,124.16
  4. Step 4: Simplify right side
    39,029.16x = 1,137,751,059.95
  5. Step 5: Solve for x
    x = 1,137,751,059.95/39,029.16
  6. Step 6: Final answer
    x = 29,151.31

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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.