Home / 30,419.13-45,533.10-19,338.33

Finding the Fourth Proportional to 30,419.13, 45,533.10 and 19,338.33

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Solution

The fourth proportional to 30,419.13, 45,533.10 and 19,338.33 is: 28,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.13 : 45,533.10 = 19,338.33 : x
  2. Step 2: Convert to fraction form
    30,419.13/45,533.10 = 19,338.33/x
  3. Step 3: Cross multiply
    30,419.13x = 45,533.10 × 19,338.33
  4. Step 4: Simplify right side
    30,419.13x = 880,534,113.72
  5. Step 5: Solve for x
    x = 880,534,113.72/30,419.13
  6. Step 6: Final answer
    x = 28,946.72

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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.