Home / 19,557.30-29,280.04-18,315.87

Finding the Fourth Proportional to 19,557.30, 29,280.04 and 18,315.87

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Solution

The fourth proportional to 19,557.30, 29,280.04 and 18,315.87 is: 27,421.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.30 : 29,280.04 = 18,315.87 : x
  2. Step 2: Convert to fraction form
    19,557.30/29,280.04 = 18,315.87/x
  3. Step 3: Cross multiply
    19,557.30x = 29,280.04 × 18,315.87
  4. Step 4: Simplify right side
    19,557.30x = 536,289,406.23
  5. Step 5: Solve for x
    x = 536,289,406.23/19,557.30
  6. Step 6: Final answer
    x = 27,421.44

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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.