Home / 19,465.79-29,160.20-12,871.98

Finding the Fourth Proportional to 19,465.79, 29,160.20 and 12,871.98

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Solution

The fourth proportional to 19,465.79, 29,160.20 and 12,871.98 is: 19,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,465.79 : 29,160.20 = 12,871.98 : x
  2. Step 2: Convert to fraction form
    19,465.79/29,160.20 = 12,871.98/x
  3. Step 3: Cross multiply
    19,465.79x = 29,160.20 × 12,871.98
  4. Step 4: Simplify right side
    19,465.79x = 375,349,543.38
  5. Step 5: Solve for x
    x = 375,349,543.38/19,465.79
  6. Step 6: Final answer
    x = 19,282.53

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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.