Home / 39,242.98-54,156.39-21,339.19

Finding the Fourth Proportional to 39,242.98, 54,156.39 and 21,339.19

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Solution

The fourth proportional to 39,242.98, 54,156.39 and 21,339.19 is: 29,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,242.98 : 54,156.39 = 21,339.19 : x
  2. Step 2: Convert to fraction form
    39,242.98/54,156.39 = 21,339.19/x
  3. Step 3: Cross multiply
    39,242.98x = 54,156.39 × 21,339.19
  4. Step 4: Simplify right side
    39,242.98x = 1,155,653,495.92
  5. Step 5: Solve for x
    x = 1,155,653,495.92/39,242.98
  6. Step 6: Final answer
    x = 29,448.67

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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.