Home / 39,337.04-54,285.80-21,431.99

Finding the Fourth Proportional to 39,337.04, 54,285.80 and 21,431.99

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Solution

The fourth proportional to 39,337.04, 54,285.80 and 21,431.99 is: 29,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.04 : 54,285.80 = 21,431.99 : x
  2. Step 2: Convert to fraction form
    39,337.04/54,285.80 = 21,431.99/x
  3. Step 3: Cross multiply
    39,337.04x = 54,285.80 × 21,431.99
  4. Step 4: Simplify right side
    39,337.04x = 1,163,452,751.30
  5. Step 5: Solve for x
    x = 1,163,452,751.30/39,337.04
  6. Step 6: Final answer
    x = 29,576.52

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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.