Home / 39,289.14-54,217.24-21,384.10

Finding the Fourth Proportional to 39,289.14, 54,217.24 and 21,384.10

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Solution

The fourth proportional to 39,289.14, 54,217.24 and 21,384.10 is: 29,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,289.14 : 54,217.24 = 21,384.10 : x
  2. Step 2: Convert to fraction form
    39,289.14/54,217.24 = 21,384.10/x
  3. Step 3: Cross multiply
    39,289.14x = 54,217.24 × 21,384.10
  4. Step 4: Simplify right side
    39,289.14x = 1,159,386,881.88
  5. Step 5: Solve for x
    x = 1,159,386,881.88/39,289.14
  6. Step 6: Final answer
    x = 29,509.09

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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.