Home / 39,488.04-54,491.86-21,583.68

Finding the Fourth Proportional to 39,488.04, 54,491.86 and 21,583.68

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Solution

The fourth proportional to 39,488.04, 54,491.86 and 21,583.68 is: 29,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,488.04 : 54,491.86 = 21,583.68 : x
  2. Step 2: Convert to fraction form
    39,488.04/54,491.86 = 21,583.68/x
  3. Step 3: Cross multiply
    39,488.04x = 54,491.86 × 21,583.68
  4. Step 4: Simplify right side
    39,488.04x = 1,176,134,868.84
  5. Step 5: Solve for x
    x = 1,176,134,868.84/39,488.04
  6. Step 6: Final answer
    x = 29,784.58

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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.