Home / 28,199.63-42,308.87-9,225.13

Finding the Fourth Proportional to 28,199.63, 42,308.87 and 9,225.13

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Solution

The fourth proportional to 28,199.63, 42,308.87 and 9,225.13 is: 13,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.63 : 42,308.87 = 9,225.13 : x
  2. Step 2: Convert to fraction form
    28,199.63/42,308.87 = 9,225.13/x
  3. Step 3: Cross multiply
    28,199.63x = 42,308.87 × 9,225.13
  4. Step 4: Simplify right side
    28,199.63x = 390,304,720.13
  5. Step 5: Solve for x
    x = 390,304,720.13/28,199.63
  6. Step 6: Final answer
    x = 13,840.77

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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.