Home / 39,320.59-54,263.06-21,415.94

Finding the Fourth Proportional to 39,320.59, 54,263.06 and 21,415.94

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Solution

The fourth proportional to 39,320.59, 54,263.06 and 21,415.94 is: 29,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.59 : 54,263.06 = 21,415.94 : x
  2. Step 2: Convert to fraction form
    39,320.59/54,263.06 = 21,415.94/x
  3. Step 3: Cross multiply
    39,320.59x = 54,263.06 × 21,415.94
  4. Step 4: Simplify right side
    39,320.59x = 1,162,094,626.37
  5. Step 5: Solve for x
    x = 1,162,094,626.37/39,320.59
  6. Step 6: Final answer
    x = 29,554.36

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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.