Home / 39,206.72-54,106.56-21,303.04

Finding the Fourth Proportional to 39,206.72, 54,106.56 and 21,303.04

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Solution

The fourth proportional to 39,206.72, 54,106.56 and 21,303.04 is: 29,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.72 : 54,106.56 = 21,303.04 : x
  2. Step 2: Convert to fraction form
    39,206.72/54,106.56 = 21,303.04/x
  3. Step 3: Cross multiply
    39,206.72x = 54,106.56 × 21,303.04
  4. Step 4: Simplify right side
    39,206.72x = 1,152,634,211.94
  5. Step 5: Solve for x
    x = 1,152,634,211.94/39,206.72
  6. Step 6: Final answer
    x = 29,398.89

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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.