Home / 39,023.06-53,851.99-21,118.07

Finding the Fourth Proportional to 39,023.06, 53,851.99 and 21,118.07

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Solution

The fourth proportional to 39,023.06, 53,851.99 and 21,118.07 is: 29,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023.06 : 53,851.99 = 21,118.07 : x
  2. Step 2: Convert to fraction form
    39,023.06/53,851.99 = 21,118.07/x
  3. Step 3: Cross multiply
    39,023.06x = 53,851.99 × 21,118.07
  4. Step 4: Simplify right side
    39,023.06x = 1,137,249,772.40
  5. Step 5: Solve for x
    x = 1,137,249,772.40/39,023.06
  6. Step 6: Final answer
    x = 29,143.02

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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.