Home / 31,052.08-42,852.63-16,905.70

Finding the Fourth Proportional to 31,052.08, 42,852.63 and 16,905.70

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Solution

The fourth proportional to 31,052.08, 42,852.63 and 16,905.70 is: 23,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.08 : 42,852.63 = 16,905.70 : x
  2. Step 2: Convert to fraction form
    31,052.08/42,852.63 = 16,905.70/x
  3. Step 3: Cross multiply
    31,052.08x = 42,852.63 × 16,905.70
  4. Step 4: Simplify right side
    31,052.08x = 724,453,663.26
  5. Step 5: Solve for x
    x = 724,453,663.26/31,052.08
  6. Step 6: Final answer
    x = 23,330.28

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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.