Home / 31,017.73-42,804.14-16,870.57

Finding the Fourth Proportional to 31,017.73, 42,804.14 and 16,870.57

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Solution

The fourth proportional to 31,017.73, 42,804.14 and 16,870.57 is: 23,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,017.73 : 42,804.14 = 16,870.57 : x
  2. Step 2: Convert to fraction form
    31,017.73/42,804.14 = 16,870.57/x
  3. Step 3: Cross multiply
    31,017.73x = 42,804.14 × 16,870.57
  4. Step 4: Simplify right side
    31,017.73x = 722,130,026.14
  5. Step 5: Solve for x
    x = 722,130,026.14/31,017.73
  6. Step 6: Final answer
    x = 23,281.21

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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.