Home / 28,601.07-42,884.28-12,803.15

Finding the Fourth Proportional to 28,601.07, 42,884.28 and 12,803.15

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Solution

The fourth proportional to 28,601.07, 42,884.28 and 12,803.15 is: 19,196.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.07 : 42,884.28 = 12,803.15 : x
  2. Step 2: Convert to fraction form
    28,601.07/42,884.28 = 12,803.15/x
  3. Step 3: Cross multiply
    28,601.07x = 42,884.28 × 12,803.15
  4. Step 4: Simplify right side
    28,601.07x = 549,053,869.48
  5. Step 5: Solve for x
    x = 549,053,869.48/28,601.07
  6. Step 6: Final answer
    x = 19,196.97

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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.