Home / 30,150.04-45,210.67-13,510.21

Finding the Fourth Proportional to 30,150.04, 45,210.67 and 13,510.21

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Solution

The fourth proportional to 30,150.04, 45,210.67 and 13,510.21 is: 20,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.04 : 45,210.67 = 13,510.21 : x
  2. Step 2: Convert to fraction form
    30,150.04/45,210.67 = 13,510.21/x
  3. Step 3: Cross multiply
    30,150.04x = 45,210.67 × 13,510.21
  4. Step 4: Simplify right side
    30,150.04x = 610,805,645.94
  5. Step 5: Solve for x
    x = 610,805,645.94/30,150.04
  6. Step 6: Final answer
    x = 20,258.87

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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.