Home / 30,447.04-42,017.67-17,020.53

Finding the Fourth Proportional to 30,447.04, 42,017.67 and 17,020.53

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Solution

The fourth proportional to 30,447.04, 42,017.67 and 17,020.53 is: 23,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,447.04 : 42,017.67 = 17,020.53 : x
  2. Step 2: Convert to fraction form
    30,447.04/42,017.67 = 17,020.53/x
  3. Step 3: Cross multiply
    30,447.04x = 42,017.67 × 17,020.53
  4. Step 4: Simplify right side
    30,447.04x = 715,163,012.77
  5. Step 5: Solve for x
    x = 715,163,012.77/30,447.04
  6. Step 6: Final answer
    x = 23,488.75

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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.