Home / 19,715.85-29,588.90-8,038.89

Finding the Fourth Proportional to 19,715.85, 29,588.90 and 8,038.89

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Solution

The fourth proportional to 19,715.85, 29,588.90 and 8,038.89 is: 12,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.85 : 29,588.90 = 8,038.89 : x
  2. Step 2: Convert to fraction form
    19,715.85/29,588.90 = 8,038.89/x
  3. Step 3: Cross multiply
    19,715.85x = 29,588.90 × 8,038.89
  4. Step 4: Simplify right side
    19,715.85x = 237,861,872.13
  5. Step 5: Solve for x
    x = 237,861,872.13/19,715.85
  6. Step 6: Final answer
    x = 12,064.50

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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.