Home / 20,580.64-28,360.14-14,282.08

Finding the Fourth Proportional to 20,580.64, 28,360.14 and 14,282.08

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Solution

The fourth proportional to 20,580.64, 28,360.14 and 14,282.08 is: 19,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.64 : 28,360.14 = 14,282.08 : x
  2. Step 2: Convert to fraction form
    20,580.64/28,360.14 = 14,282.08/x
  3. Step 3: Cross multiply
    20,580.64x = 28,360.14 × 14,282.08
  4. Step 4: Simplify right side
    20,580.64x = 405,041,788.29
  5. Step 5: Solve for x
    x = 405,041,788.29/20,580.64
  6. Step 6: Final answer
    x = 19,680.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.