Home / 20,041.80-27,657.28-11,089.68

Finding the Fourth Proportional to 20,041.80, 27,657.28 and 11,089.68

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Solution

The fourth proportional to 20,041.80, 27,657.28 and 11,089.68 is: 15,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.80 : 27,657.28 = 11,089.68 : x
  2. Step 2: Convert to fraction form
    20,041.80/27,657.28 = 11,089.68/x
  3. Step 3: Cross multiply
    20,041.80x = 27,657.28 × 11,089.68
  4. Step 4: Simplify right side
    20,041.80x = 306,710,384.87
  5. Step 5: Solve for x
    x = 306,710,384.87/20,041.80
  6. Step 6: Final answer
    x = 15,303.53

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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.