Home / 30,188.17-45,267.69-12,653.29

Finding the Fourth Proportional to 30,188.17, 45,267.69 and 12,653.29

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Solution

The fourth proportional to 30,188.17, 45,267.69 and 12,653.29 is: 18,973.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.17 : 45,267.69 = 12,653.29 : x
  2. Step 2: Convert to fraction form
    30,188.17/45,267.69 = 12,653.29/x
  3. Step 3: Cross multiply
    30,188.17x = 45,267.69 × 12,653.29
  4. Step 4: Simplify right side
    30,188.17x = 572,785,209.20
  5. Step 5: Solve for x
    x = 572,785,209.20/30,188.17
  6. Step 6: Final answer
    x = 18,973.83

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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.