Home / 30,077.88-45,133.14-12,549.24

Finding the Fourth Proportional to 30,077.88, 45,133.14 and 12,549.24

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Solution

The fourth proportional to 30,077.88, 45,133.14 and 12,549.24 is: 18,830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,077.88 : 45,133.14 = 12,549.24 : x
  2. Step 2: Convert to fraction form
    30,077.88/45,133.14 = 12,549.24/x
  3. Step 3: Cross multiply
    30,077.88x = 45,133.14 × 12,549.24
  4. Step 4: Simplify right side
    30,077.88x = 566,386,605.81
  5. Step 5: Solve for x
    x = 566,386,605.81/30,077.88
  6. Step 6: Final answer
    x = 18,830.67

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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.