Home / 30,220.17-45,335.11-12,695.01

Finding the Fourth Proportional to 30,220.17, 45,335.11 and 12,695.01

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Solution

The fourth proportional to 30,220.17, 45,335.11 and 12,695.01 is: 19,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.17 : 45,335.11 = 12,695.01 : x
  2. Step 2: Convert to fraction form
    30,220.17/45,335.11 = 12,695.01/x
  3. Step 3: Cross multiply
    30,220.17x = 45,335.11 × 12,695.01
  4. Step 4: Simplify right side
    30,220.17x = 575,529,674.80
  5. Step 5: Solve for x
    x = 575,529,674.80/30,220.17
  6. Step 6: Final answer
    x = 19,044.55

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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.