Home / 36,117.40-54,208.10-21,307.80

Finding the Fourth Proportional to 36,117.40, 54,208.10 and 21,307.80

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Solution

The fourth proportional to 36,117.40, 54,208.10 and 21,307.80 is: 31,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,117.40 : 54,208.10 = 21,307.80 : x
  2. Step 2: Convert to fraction form
    36,117.40/54,208.10 = 21,307.80/x
  3. Step 3: Cross multiply
    36,117.40x = 54,208.10 × 21,307.80
  4. Step 4: Simplify right side
    36,117.40x = 1,155,055,353.18
  5. Step 5: Solve for x
    x = 1,155,055,353.18/36,117.40
  6. Step 6: Final answer
    x = 31,980.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.