Home / 30,498.13-45,747.20-12,955.69

Finding the Fourth Proportional to 30,498.13, 45,747.20 and 12,955.69

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Solution

The fourth proportional to 30,498.13, 45,747.20 and 12,955.69 is: 19,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.13 : 45,747.20 = 12,955.69 : x
  2. Step 2: Convert to fraction form
    30,498.13/45,747.20 = 12,955.69/x
  3. Step 3: Cross multiply
    30,498.13x = 45,747.20 × 12,955.69
  4. Step 4: Simplify right side
    30,498.13x = 592,686,541.57
  5. Step 5: Solve for x
    x = 592,686,541.57/30,498.13
  6. Step 6: Final answer
    x = 19,433.54

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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.