Home / 19,642.97-29,464.77-18,646.07

Finding the Fourth Proportional to 19,642.97, 29,464.77 and 18,646.07

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Solution

The fourth proportional to 19,642.97, 29,464.77 and 18,646.07 is: 27,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.97 : 29,464.77 = 18,646.07 : x
  2. Step 2: Convert to fraction form
    19,642.97/29,464.77 = 18,646.07/x
  3. Step 3: Cross multiply
    19,642.97x = 29,464.77 × 18,646.07
  4. Step 4: Simplify right side
    19,642.97x = 549,402,016.63
  5. Step 5: Solve for x
    x = 549,402,016.63/19,642.97
  6. Step 6: Final answer
    x = 27,969.40

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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.