Home / 28,601.57-42,885.03-12,803.66

Finding the Fourth Proportional to 28,601.57, 42,885.03 and 12,803.66

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Solution

The fourth proportional to 28,601.57, 42,885.03 and 12,803.66 is: 19,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.57 : 42,885.03 = 12,803.66 : x
  2. Step 2: Convert to fraction form
    28,601.57/42,885.03 = 12,803.66/x
  3. Step 3: Cross multiply
    28,601.57x = 42,885.03 × 12,803.66
  4. Step 4: Simplify right side
    28,601.57x = 549,085,128.78
  5. Step 5: Solve for x
    x = 549,085,128.78/28,601.57
  6. Step 6: Final answer
    x = 19,197.73

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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.