Home / 35,322.06-48,722.81-20,972.15

Finding the Fourth Proportional to 35,322.06, 48,722.81 and 20,972.15

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Solution

The fourth proportional to 35,322.06, 48,722.81 and 20,972.15 is: 28,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,322.06 : 48,722.81 = 20,972.15 : x
  2. Step 2: Convert to fraction form
    35,322.06/48,722.81 = 20,972.15/x
  3. Step 3: Cross multiply
    35,322.06x = 48,722.81 × 20,972.15
  4. Step 4: Simplify right side
    35,322.06x = 1,021,822,079.74
  5. Step 5: Solve for x
    x = 1,021,822,079.74/35,322.06
  6. Step 6: Final answer
    x = 28,928.72

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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.