Home / 19,307.30-29,004.15-18,520.10

Finding the Fourth Proportional to 19,307.30, 29,004.15 and 18,520.10

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Solution

The fourth proportional to 19,307.30, 29,004.15 and 18,520.10 is: 27,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.30 : 29,004.15 = 18,520.10 : x
  2. Step 2: Convert to fraction form
    19,307.30/29,004.15 = 18,520.10/x
  3. Step 3: Cross multiply
    19,307.30x = 29,004.15 × 18,520.10
  4. Step 4: Simplify right side
    19,307.30x = 537,159,758.42
  5. Step 5: Solve for x
    x = 537,159,758.42/19,307.30
  6. Step 6: Final answer
    x = 27,821.59

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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.