Home / 28,338.72-42,508.16-13,544.28

Finding the Fourth Proportional to 28,338.72, 42,508.16 and 13,544.28

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Solution

The fourth proportional to 28,338.72, 42,508.16 and 13,544.28 is: 20,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.72 : 42,508.16 = 13,544.28 : x
  2. Step 2: Convert to fraction form
    28,338.72/42,508.16 = 13,544.28/x
  3. Step 3: Cross multiply
    28,338.72x = 42,508.16 × 13,544.28
  4. Step 4: Simplify right side
    28,338.72x = 575,742,421.32
  5. Step 5: Solve for x
    x = 575,742,421.32/28,338.72
  6. Step 6: Final answer
    x = 20,316.46

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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.