Home / 30,320.48-45,477.54-8,136.13

Finding the Fourth Proportional to 30,320.48, 45,477.54 and 8,136.13

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Solution

The fourth proportional to 30,320.48, 45,477.54 and 8,136.13 is: 12,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.48 : 45,477.54 = 8,136.13 : x
  2. Step 2: Convert to fraction form
    30,320.48/45,477.54 = 8,136.13/x
  3. Step 3: Cross multiply
    30,320.48x = 45,477.54 × 8,136.13
  4. Step 4: Simplify right side
    30,320.48x = 370,011,177.52
  5. Step 5: Solve for x
    x = 370,011,177.52/30,320.48
  6. Step 6: Final answer
    x = 12,203.34

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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.