Home / 30,297.03-45,423.67-12,757.29

Finding the Fourth Proportional to 30,297.03, 45,423.67 and 12,757.29

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Solution

The fourth proportional to 30,297.03, 45,423.67 and 12,757.29 is: 19,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,297.03 : 45,423.67 = 12,757.29 : x
  2. Step 2: Convert to fraction form
    30,297.03/45,423.67 = 12,757.29/x
  3. Step 3: Cross multiply
    30,297.03x = 45,423.67 × 12,757.29
  4. Step 4: Simplify right side
    30,297.03x = 579,482,931.05
  5. Step 5: Solve for x
    x = 579,482,931.05/30,297.03
  6. Step 6: Final answer
    x = 19,126.72

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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.