Home / 19,426.28-29,139.38-8,325.77

Finding the Fourth Proportional to 19,426.28, 29,139.38 and 8,325.77

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Solution

The fourth proportional to 19,426.28, 29,139.38 and 8,325.77 is: 12,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.28 : 29,139.38 = 8,325.77 : x
  2. Step 2: Convert to fraction form
    19,426.28/29,139.38 = 8,325.77/x
  3. Step 3: Cross multiply
    19,426.28x = 29,139.38 × 8,325.77
  4. Step 4: Simplify right side
    19,426.28x = 242,607,734.19
  5. Step 5: Solve for x
    x = 242,607,734.19/19,426.28
  6. Step 6: Final answer
    x = 12,488.64

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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.