Home / 20,225.04-30,320.24-13,284.24

Finding the Fourth Proportional to 20,225.04, 30,320.24 and 13,284.24

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Solution

The fourth proportional to 20,225.04, 30,320.24 and 13,284.24 is: 19,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.04 : 30,320.24 = 13,284.24 : x
  2. Step 2: Convert to fraction form
    20,225.04/30,320.24 = 13,284.24/x
  3. Step 3: Cross multiply
    20,225.04x = 30,320.24 × 13,284.24
  4. Step 4: Simplify right side
    20,225.04x = 402,781,345.02
  5. Step 5: Solve for x
    x = 402,781,345.02/20,225.04
  6. Step 6: Final answer
    x = 19,914.98

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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.