Home / 28,931.50-39,923.58-16,182.47

Finding the Fourth Proportional to 28,931.50, 39,923.58 and 16,182.47

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Solution

The fourth proportional to 28,931.50, 39,923.58 and 16,182.47 is: 22,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.50 : 39,923.58 = 16,182.47 : x
  2. Step 2: Convert to fraction form
    28,931.50/39,923.58 = 16,182.47/x
  3. Step 3: Cross multiply
    28,931.50x = 39,923.58 × 16,182.47
  4. Step 4: Simplify right side
    28,931.50x = 646,062,035.83
  5. Step 5: Solve for x
    x = 646,062,035.83/28,931.50
  6. Step 6: Final answer
    x = 22,330.75

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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.