Home / 30,155.04-45,172.08-15,363.36

Finding the Fourth Proportional to 30,155.04, 45,172.08 and 15,363.36

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Solution

The fourth proportional to 30,155.04, 45,172.08 and 15,363.36 is: 23,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.04 : 45,172.08 = 15,363.36 : x
  2. Step 2: Convert to fraction form
    30,155.04/45,172.08 = 15,363.36/x
  3. Step 3: Cross multiply
    30,155.04x = 45,172.08 × 15,363.36
  4. Step 4: Simplify right side
    30,155.04x = 693,994,926.99
  5. Step 5: Solve for x
    x = 693,994,926.99/30,155.04
  6. Step 6: Final answer
    x = 23,014.23

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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.