Home / 19,920.24-27,486.35-11,962.60

Finding the Fourth Proportional to 19,920.24, 27,486.35 and 11,962.60

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Solution

The fourth proportional to 19,920.24, 27,486.35 and 11,962.60 is: 16,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.24 : 27,486.35 = 11,962.60 : x
  2. Step 2: Convert to fraction form
    19,920.24/27,486.35 = 11,962.60/x
  3. Step 3: Cross multiply
    19,920.24x = 27,486.35 × 11,962.60
  4. Step 4: Simplify right side
    19,920.24x = 328,808,210.51
  5. Step 5: Solve for x
    x = 328,808,210.51/19,920.24
  6. Step 6: Final answer
    x = 16,506.24

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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.