Home / 28,931.45-39,925.04-16,995.87

Finding the Fourth Proportional to 28,931.45, 39,925.04 and 16,995.87

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Solution

The fourth proportional to 28,931.45, 39,925.04 and 16,995.87 is: 23,454.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.45 : 39,925.04 = 16,995.87 : x
  2. Step 2: Convert to fraction form
    28,931.45/39,925.04 = 16,995.87/x
  3. Step 3: Cross multiply
    28,931.45x = 39,925.04 × 16,995.87
  4. Step 4: Simplify right side
    28,931.45x = 678,560,704.61
  5. Step 5: Solve for x
    x = 678,560,704.61/28,931.45
  6. Step 6: Final answer
    x = 23,454.09

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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.