Home / 39,289.34-54,219.29-21,384.48

Finding the Fourth Proportional to 39,289.34, 54,219.29 and 21,384.48

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Solution

The fourth proportional to 39,289.34, 54,219.29 and 21,384.48 is: 29,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,289.34 : 54,219.29 = 21,384.48 : x
  2. Step 2: Convert to fraction form
    39,289.34/54,219.29 = 21,384.48/x
  3. Step 3: Cross multiply
    39,289.34x = 54,219.29 × 21,384.48
  4. Step 4: Simplify right side
    39,289.34x = 1,159,451,322.62
  5. Step 5: Solve for x
    x = 1,159,451,322.62/39,289.34
  6. Step 6: Final answer
    x = 29,510.58

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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.