Home / 25,867.01-38,804.36-12,720.30

Finding the Fourth Proportional to 25,867.01, 38,804.36 and 12,720.30

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Solution

The fourth proportional to 25,867.01, 38,804.36 and 12,720.30 is: 19,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,867.01 : 38,804.36 = 12,720.30 : x
  2. Step 2: Convert to fraction form
    25,867.01/38,804.36 = 12,720.30/x
  3. Step 3: Cross multiply
    25,867.01x = 38,804.36 × 12,720.30
  4. Step 4: Simplify right side
    25,867.01x = 493,603,036.91
  5. Step 5: Solve for x
    x = 493,603,036.91/25,867.01
  6. Step 6: Final answer
    x = 19,082.34

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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.