Home / 30,210.36-45,330.39-13,582.14

Finding the Fourth Proportional to 30,210.36, 45,330.39 and 13,582.14

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Solution

The fourth proportional to 30,210.36, 45,330.39 and 13,582.14 is: 20,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.36 : 45,330.39 = 13,582.14 : x
  2. Step 2: Convert to fraction form
    30,210.36/45,330.39 = 13,582.14/x
  3. Step 3: Cross multiply
    30,210.36x = 45,330.39 × 13,582.14
  4. Step 4: Simplify right side
    30,210.36x = 615,683,703.23
  5. Step 5: Solve for x
    x = 615,683,703.23/30,210.36
  6. Step 6: Final answer
    x = 20,379.89

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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.