Home / 39,292.80-54,225.50-21,386.94

Finding the Fourth Proportional to 39,292.80, 54,225.50 and 21,386.94

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Solution

The fourth proportional to 39,292.80, 54,225.50 and 21,386.94 is: 29,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.80 : 54,225.50 = 21,386.94 : x
  2. Step 2: Convert to fraction form
    39,292.80/54,225.50 = 21,386.94/x
  3. Step 3: Cross multiply
    39,292.80x = 54,225.50 × 21,386.94
  4. Step 4: Simplify right side
    39,292.80x = 1,159,717,408.04
  5. Step 5: Solve for x
    x = 1,159,717,408.04/39,292.80
  6. Step 6: Final answer
    x = 29,514.76

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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.