Home / 31,053.06-42,853.32-16,905.87

Finding the Fourth Proportional to 31,053.06, 42,853.32 and 16,905.87

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Solution

The fourth proportional to 31,053.06, 42,853.32 and 16,905.87 is: 23,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,053.06 : 42,853.32 = 16,905.87 : x
  2. Step 2: Convert to fraction form
    31,053.06/42,853.32 = 16,905.87/x
  3. Step 3: Cross multiply
    31,053.06x = 42,853.32 × 16,905.87
  4. Step 4: Simplify right side
    31,053.06x = 724,472,656.99
  5. Step 5: Solve for x
    x = 724,472,656.99/31,053.06
  6. Step 6: Final answer
    x = 23,330.15

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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.