Home / 19,672.32-29,509.50-8,579.76

Finding the Fourth Proportional to 19,672.32, 29,509.50 and 8,579.76

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Solution

The fourth proportional to 19,672.32, 29,509.50 and 8,579.76 is: 12,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.32 : 29,509.50 = 8,579.76 : x
  2. Step 2: Convert to fraction form
    19,672.32/29,509.50 = 8,579.76/x
  3. Step 3: Cross multiply
    19,672.32x = 29,509.50 × 8,579.76
  4. Step 4: Simplify right side
    19,672.32x = 253,184,427.72
  5. Step 5: Solve for x
    x = 253,184,427.72/19,672.32
  6. Step 6: Final answer
    x = 12,870.08

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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.