Home / 28,534.30-42,808.74-10,999.42

Finding the Fourth Proportional to 28,534.30, 42,808.74 and 10,999.42

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Solution

The fourth proportional to 28,534.30, 42,808.74 and 10,999.42 is: 16,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.30 : 42,808.74 = 10,999.42 : x
  2. Step 2: Convert to fraction form
    28,534.30/42,808.74 = 10,999.42/x
  3. Step 3: Cross multiply
    28,534.30x = 42,808.74 × 10,999.42
  4. Step 4: Simplify right side
    28,534.30x = 470,871,310.93
  5. Step 5: Solve for x
    x = 470,871,310.93/28,534.30
  6. Step 6: Final answer
    x = 16,501.94

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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.