Home / 28,199.32-42,299.28-11,555.08

Finding the Fourth Proportional to 28,199.32, 42,299.28 and 11,555.08

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Solution

The fourth proportional to 28,199.32, 42,299.28 and 11,555.08 is: 17,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.32 : 42,299.28 = 11,555.08 : x
  2. Step 2: Convert to fraction form
    28,199.32/42,299.28 = 11,555.08/x
  3. Step 3: Cross multiply
    28,199.32x = 42,299.28 × 11,555.08
  4. Step 4: Simplify right side
    28,199.32x = 488,771,564.34
  5. Step 5: Solve for x
    x = 488,771,564.34/28,199.32
  6. Step 6: Final answer
    x = 17,332.74

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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.