Home / 19,765.08-29,618.28-10,987.92

Finding the Fourth Proportional to 19,765.08, 29,618.28 and 10,987.92

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Solution

The fourth proportional to 19,765.08, 29,618.28 and 10,987.92 is: 16,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.08 : 29,618.28 = 10,987.92 : x
  2. Step 2: Convert to fraction form
    19,765.08/29,618.28 = 10,987.92/x
  3. Step 3: Cross multiply
    19,765.08x = 29,618.28 × 10,987.92
  4. Step 4: Simplify right side
    19,765.08x = 325,443,291.18
  5. Step 5: Solve for x
    x = 325,443,291.18/19,765.08
  6. Step 6: Final answer
    x = 16,465.57

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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.