Home / 28,977.12-43,460.55-13,178.45

Finding the Fourth Proportional to 28,977.12, 43,460.55 and 13,178.45

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Solution

The fourth proportional to 28,977.12, 43,460.55 and 13,178.45 is: 19,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.12 : 43,460.55 = 13,178.45 : x
  2. Step 2: Convert to fraction form
    28,977.12/43,460.55 = 13,178.45/x
  3. Step 3: Cross multiply
    28,977.12x = 43,460.55 × 13,178.45
  4. Step 4: Simplify right side
    28,977.12x = 572,742,549.33
  5. Step 5: Solve for x
    x = 572,742,549.33/28,977.12
  6. Step 6: Final answer
    x = 19,765.34

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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.