Home / 31,053.04-42,853.20-16,905.88

Finding the Fourth Proportional to 31,053.04, 42,853.20 and 16,905.88

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Solution

The fourth proportional to 31,053.04, 42,853.20 and 16,905.88 is: 23,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,053.04 : 42,853.20 = 16,905.88 : x
  2. Step 2: Convert to fraction form
    31,053.04/42,853.20 = 16,905.88/x
  3. Step 3: Cross multiply
    31,053.04x = 42,853.20 × 16,905.88
  4. Step 4: Simplify right side
    31,053.04x = 724,471,056.82
  5. Step 5: Solve for x
    x = 724,471,056.82/31,053.04
  6. Step 6: Final answer
    x = 23,330.12

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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.