Home / 18,973.43-28,475.63-13,432.15

Finding the Fourth Proportional to 18,973.43, 28,475.63 and 13,432.15

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Solution

The fourth proportional to 18,973.43, 28,475.63 and 13,432.15 is: 20,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.43 : 28,475.63 = 13,432.15 : x
  2. Step 2: Convert to fraction form
    18,973.43/28,475.63 = 13,432.15/x
  3. Step 3: Cross multiply
    18,973.43x = 28,475.63 × 13,432.15
  4. Step 4: Simplify right side
    18,973.43x = 382,488,933.50
  5. Step 5: Solve for x
    x = 382,488,933.50/18,973.43
  6. Step 6: Final answer
    x = 20,159.19

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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.