Home / 30,225.60-45,292.20-20,328.24

Finding the Fourth Proportional to 30,225.60, 45,292.20 and 20,328.24

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Solution

The fourth proportional to 30,225.60, 45,292.20 and 20,328.24 is: 30,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.60 : 45,292.20 = 20,328.24 : x
  2. Step 2: Convert to fraction form
    30,225.60/45,292.20 = 20,328.24/x
  3. Step 3: Cross multiply
    30,225.60x = 45,292.20 × 20,328.24
  4. Step 4: Simplify right side
    30,225.60x = 920,710,711.73
  5. Step 5: Solve for x
    x = 920,710,711.73/30,225.60
  6. Step 6: Final answer
    x = 30,461.29

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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.