Home / 30,047.36-45,075.90-12,518.96

Finding the Fourth Proportional to 30,047.36, 45,075.90 and 12,518.96

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Solution

The fourth proportional to 30,047.36, 45,075.90 and 12,518.96 is: 18,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.36 : 45,075.90 = 12,518.96 : x
  2. Step 2: Convert to fraction form
    30,047.36/45,075.90 = 12,518.96/x
  3. Step 3: Cross multiply
    30,047.36x = 45,075.90 × 12,518.96
  4. Step 4: Simplify right side
    30,047.36x = 564,303,389.06
  5. Step 5: Solve for x
    x = 564,303,389.06/30,047.36
  6. Step 6: Final answer
    x = 18,780.46

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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.