Home / 39,208.04-54,107.18-21,303.07

Finding the Fourth Proportional to 39,208.04, 54,107.18 and 21,303.07

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Solution

The fourth proportional to 39,208.04, 54,107.18 and 21,303.07 is: 29,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.04 : 54,107.18 = 21,303.07 : x
  2. Step 2: Convert to fraction form
    39,208.04/54,107.18 = 21,303.07/x
  3. Step 3: Cross multiply
    39,208.04x = 54,107.18 × 21,303.07
  4. Step 4: Simplify right side
    39,208.04x = 1,152,648,881.15
  5. Step 5: Solve for x
    x = 1,152,648,881.15/39,208.04
  6. Step 6: Final answer
    x = 29,398.28

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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.