Home / 28,932.85-39,931.59-18,323.47

Finding the Fourth Proportional to 28,932.85, 39,931.59 and 18,323.47

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Solution

The fourth proportional to 28,932.85, 39,931.59 and 18,323.47 is: 25,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,932.85 : 39,931.59 = 18,323.47 : x
  2. Step 2: Convert to fraction form
    28,932.85/39,931.59 = 18,323.47/x
  3. Step 3: Cross multiply
    28,932.85x = 39,931.59 × 18,323.47
  4. Step 4: Simplify right side
    28,932.85x = 731,685,291.42
  5. Step 5: Solve for x
    x = 731,685,291.42/28,932.85
  6. Step 6: Final answer
    x = 25,289.08

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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.