Home / 27,656.04-38,165.40-15,081.60

Finding the Fourth Proportional to 27,656.04, 38,165.40 and 15,081.60

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Solution

The fourth proportional to 27,656.04, 38,165.40 and 15,081.60 is: 20,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.04 : 38,165.40 = 15,081.60 : x
  2. Step 2: Convert to fraction form
    27,656.04/38,165.40 = 15,081.60/x
  3. Step 3: Cross multiply
    27,656.04x = 38,165.40 × 15,081.60
  4. Step 4: Simplify right side
    27,656.04x = 575,595,296.64
  5. Step 5: Solve for x
    x = 575,595,296.64/27,656.04
  6. Step 6: Final answer
    x = 20,812.64

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Half scale
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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.