Home / 39,587.36-54,631.18-21,684.06

Finding the Fourth Proportional to 39,587.36, 54,631.18 and 21,684.06

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Solution

The fourth proportional to 39,587.36, 54,631.18 and 21,684.06 is: 29,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.36 : 54,631.18 = 21,684.06 : x
  2. Step 2: Convert to fraction form
    39,587.36/54,631.18 = 21,684.06/x
  3. Step 3: Cross multiply
    39,587.36x = 54,631.18 × 21,684.06
  4. Step 4: Simplify right side
    39,587.36x = 1,184,625,784.99
  5. Step 5: Solve for x
    x = 1,184,625,784.99/39,587.36
  6. Step 6: Final answer
    x = 29,924.34

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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.