Home / 35,532.32-49,019.22-20,421.50

Finding the Fourth Proportional to 35,532.32, 49,019.22 and 20,421.50

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Solution

The fourth proportional to 35,532.32, 49,019.22 and 20,421.50 is: 28,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,532.32 : 49,019.22 = 20,421.50 : x
  2. Step 2: Convert to fraction form
    35,532.32/49,019.22 = 20,421.50/x
  3. Step 3: Cross multiply
    35,532.32x = 49,019.22 × 20,421.50
  4. Step 4: Simplify right side
    35,532.32x = 1,001,046,001.23
  5. Step 5: Solve for x
    x = 1,001,046,001.23/35,532.32
  6. Step 6: Final answer
    x = 28,172.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.