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Finding the Fourth Proportional to 57,033.65, 85,490.00 and 21,958.13

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Solution

The fourth proportional to 57,033.65, 85,490.00 and 21,958.13 is: 32,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,033.65 : 85,490.00 = 21,958.13 : x
  2. Step 2: Convert to fraction form
    57,033.65/85,490.00 = 21,958.13/x
  3. Step 3: Cross multiply
    57,033.65x = 85,490.00 × 21,958.13
  4. Step 4: Simplify right side
    57,033.65x = 1,877,200,423.91
  5. Step 5: Solve for x
    x = 1,877,200,423.91/57,033.65
  6. Step 6: Final answer
    x = 32,913.91

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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.