Home / 19,990.52-30,036.81-15,106.22

Finding the Fourth Proportional to 19,990.52, 30,036.81 and 15,106.22

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Solution

The fourth proportional to 19,990.52, 30,036.81 and 15,106.22 is: 22,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.52 : 30,036.81 = 15,106.22 : x
  2. Step 2: Convert to fraction form
    19,990.52/30,036.81 = 15,106.22/x
  3. Step 3: Cross multiply
    19,990.52x = 30,036.81 × 15,106.22
  4. Step 4: Simplify right side
    19,990.52x = 453,742,659.96
  5. Step 5: Solve for x
    x = 453,742,659.96/19,990.52
  6. Step 6: Final answer
    x = 22,697.89

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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.