Home / 19,412.10-29,124.30-6,931.86

Finding the Fourth Proportional to 19,412.10, 29,124.30 and 6,931.86

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Solution

The fourth proportional to 19,412.10, 29,124.30 and 6,931.86 is: 10,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.10 : 29,124.30 = 6,931.86 : x
  2. Step 2: Convert to fraction form
    19,412.10/29,124.30 = 6,931.86/x
  3. Step 3: Cross multiply
    19,412.10x = 29,124.30 × 6,931.86
  4. Step 4: Simplify right side
    19,412.10x = 201,885,570.20
  5. Step 5: Solve for x
    x = 201,885,570.20/19,412.10
  6. Step 6: Final answer
    x = 10,399.99

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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.