Home / 34,438.72-47,528.85-21,018.94

Finding the Fourth Proportional to 34,438.72, 47,528.85 and 21,018.94

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Solution

The fourth proportional to 34,438.72, 47,528.85 and 21,018.94 is: 29,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,438.72 : 47,528.85 = 21,018.94 : x
  2. Step 2: Convert to fraction form
    34,438.72/47,528.85 = 21,018.94/x
  3. Step 3: Cross multiply
    34,438.72x = 47,528.85 × 21,018.94
  4. Step 4: Simplify right side
    34,438.72x = 999,006,046.42
  5. Step 5: Solve for x
    x = 999,006,046.42/34,438.72
  6. Step 6: Final answer
    x = 29,008.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.