Home / 20,298.55-28,011.92-11,346.06

Finding the Fourth Proportional to 20,298.55, 28,011.92 and 11,346.06

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Solution

The fourth proportional to 20,298.55, 28,011.92 and 11,346.06 is: 15,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.55 : 28,011.92 = 11,346.06 : x
  2. Step 2: Convert to fraction form
    20,298.55/28,011.92 = 11,346.06/x
  3. Step 3: Cross multiply
    20,298.55x = 28,011.92 × 11,346.06
  4. Step 4: Simplify right side
    20,298.55x = 317,824,925.04
  5. Step 5: Solve for x
    x = 317,824,925.04/20,298.55
  6. Step 6: Final answer
    x = 15,657.52

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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.