Home / 31,051.16-42,849.51-16,903.70

Finding the Fourth Proportional to 31,051.16, 42,849.51 and 16,903.70

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Solution

The fourth proportional to 31,051.16, 42,849.51 and 16,903.70 is: 23,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,051.16 : 42,849.51 = 16,903.70 : x
  2. Step 2: Convert to fraction form
    31,051.16/42,849.51 = 16,903.70/x
  3. Step 3: Cross multiply
    31,051.16x = 42,849.51 × 16,903.70
  4. Step 4: Simplify right side
    31,051.16x = 724,315,262.19
  5. Step 5: Solve for x
    x = 724,315,262.19/31,051.16
  6. Step 6: Final answer
    x = 23,326.51

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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.