Home / 39,590.19-54,634.50-21,686.31

Finding the Fourth Proportional to 39,590.19, 54,634.50 and 21,686.31

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Solution

The fourth proportional to 39,590.19, 54,634.50 and 21,686.31 is: 29,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.19 : 54,634.50 = 21,686.31 : x
  2. Step 2: Convert to fraction form
    39,590.19/54,634.50 = 21,686.31/x
  3. Step 3: Cross multiply
    39,590.19x = 54,634.50 × 21,686.31
  4. Step 4: Simplify right side
    39,590.19x = 1,184,820,703.70
  5. Step 5: Solve for x
    x = 1,184,820,703.70/39,590.19
  6. Step 6: Final answer
    x = 29,927.13

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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.