Home / 30,051.81-45,087.98-13,423.32

Finding the Fourth Proportional to 30,051.81, 45,087.98 and 13,423.32

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Solution

The fourth proportional to 30,051.81, 45,087.98 and 13,423.32 is: 20,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.81 : 45,087.98 = 13,423.32 : x
  2. Step 2: Convert to fraction form
    30,051.81/45,087.98 = 13,423.32/x
  3. Step 3: Cross multiply
    30,051.81x = 45,087.98 × 13,423.32
  4. Step 4: Simplify right side
    30,051.81x = 605,230,316.58
  5. Step 5: Solve for x
    x = 605,230,316.58/30,051.81
  6. Step 6: Final answer
    x = 20,139.56

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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.