Home / 30,533.40-45,800.70-20,070.12

Finding the Fourth Proportional to 30,533.40, 45,800.70 and 20,070.12

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Solution

The fourth proportional to 30,533.40, 45,800.70 and 20,070.12 is: 30,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,533.40 : 45,800.70 = 20,070.12 : x
  2. Step 2: Convert to fraction form
    30,533.40/45,800.70 = 20,070.12/x
  3. Step 3: Cross multiply
    30,533.40x = 45,800.70 × 20,070.12
  4. Step 4: Simplify right side
    30,533.40x = 919,225,545.08
  5. Step 5: Solve for x
    x = 919,225,545.08/30,533.40
  6. Step 6: Final answer
    x = 30,105.57

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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.