Home / 19,439.21-26,834.24-13,155.23

Finding the Fourth Proportional to 19,439.21, 26,834.24 and 13,155.23

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Solution

The fourth proportional to 19,439.21, 26,834.24 and 13,155.23 is: 18,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.21 : 26,834.24 = 13,155.23 : x
  2. Step 2: Convert to fraction form
    19,439.21/26,834.24 = 13,155.23/x
  3. Step 3: Cross multiply
    19,439.21x = 26,834.24 × 13,155.23
  4. Step 4: Simplify right side
    19,439.21x = 353,010,533.30
  5. Step 5: Solve for x
    x = 353,010,533.30/19,439.21
  6. Step 6: Final answer
    x = 18,159.72

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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.