Home / 39,017.29-53,843.95-21,112.48

Finding the Fourth Proportional to 39,017.29, 53,843.95 and 21,112.48

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Solution

The fourth proportional to 39,017.29, 53,843.95 and 21,112.48 is: 29,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.29 : 53,843.95 = 21,112.48 : x
  2. Step 2: Convert to fraction form
    39,017.29/53,843.95 = 21,112.48/x
  3. Step 3: Cross multiply
    39,017.29x = 53,843.95 × 21,112.48
  4. Step 4: Simplify right side
    39,017.29x = 1,136,779,209.28
  5. Step 5: Solve for x
    x = 1,136,779,209.28/39,017.29
  6. Step 6: Final answer
    x = 29,135.27

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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.