Home / 20,199.08-30,312.45-7,051.45

Finding the Fourth Proportional to 20,199.08, 30,312.45 and 7,051.45

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Solution

The fourth proportional to 20,199.08, 30,312.45 and 7,051.45 is: 10,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.08 : 30,312.45 = 7,051.45 : x
  2. Step 2: Convert to fraction form
    20,199.08/30,312.45 = 7,051.45/x
  3. Step 3: Cross multiply
    20,199.08x = 30,312.45 × 7,051.45
  4. Step 4: Simplify right side
    20,199.08x = 213,746,649.77
  5. Step 5: Solve for x
    x = 213,746,649.77/20,199.08
  6. Step 6: Final answer
    x = 10,582.00

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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.