Home / 30,534.36-45,830.70-18,870.36

Finding the Fourth Proportional to 30,534.36, 45,830.70 and 18,870.36

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Solution

The fourth proportional to 30,534.36, 45,830.70 and 18,870.36 is: 28,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.36 : 45,830.70 = 18,870.36 : x
  2. Step 2: Convert to fraction form
    30,534.36/45,830.70 = 18,870.36/x
  3. Step 3: Cross multiply
    30,534.36x = 45,830.70 × 18,870.36
  4. Step 4: Simplify right side
    30,534.36x = 864,841,808.05
  5. Step 5: Solve for x
    x = 864,841,808.05/30,534.36
  6. Step 6: Final answer
    x = 28,323.56

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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.