Home / 28,225.22-42,322.70-9,499.04

Finding the Fourth Proportional to 28,225.22, 42,322.70 and 9,499.04

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Solution

The fourth proportional to 28,225.22, 42,322.70 and 9,499.04 is: 14,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.22 : 42,322.70 = 9,499.04 : x
  2. Step 2: Convert to fraction form
    28,225.22/42,322.70 = 9,499.04/x
  3. Step 3: Cross multiply
    28,225.22x = 42,322.70 × 9,499.04
  4. Step 4: Simplify right side
    28,225.22x = 402,024,761.10
  5. Step 5: Solve for x
    x = 402,024,761.10/28,225.22
  6. Step 6: Final answer
    x = 14,243.46

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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.