Home / 39,152.80-54,031.02-21,247.81

Finding the Fourth Proportional to 39,152.80, 54,031.02 and 21,247.81

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Solution

The fourth proportional to 39,152.80, 54,031.02 and 21,247.81 is: 29,322.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,152.80 : 54,031.02 = 21,247.81 : x
  2. Step 2: Convert to fraction form
    39,152.80/54,031.02 = 21,247.81/x
  3. Step 3: Cross multiply
    39,152.80x = 54,031.02 × 21,247.81
  4. Step 4: Simplify right side
    39,152.80x = 1,148,040,847.07
  5. Step 5: Solve for x
    x = 1,148,040,847.07/39,152.80
  6. Step 6: Final answer
    x = 29,322.06

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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.