Home / 30,443.65-42,012.12-17,014.78

Finding the Fourth Proportional to 30,443.65, 42,012.12 and 17,014.78

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Solution

The fourth proportional to 30,443.65, 42,012.12 and 17,014.78 is: 23,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.65 : 42,012.12 = 17,014.78 : x
  2. Step 2: Convert to fraction form
    30,443.65/42,012.12 = 17,014.78/x
  3. Step 3: Cross multiply
    30,443.65x = 42,012.12 × 17,014.78
  4. Step 4: Simplify right side
    30,443.65x = 714,827,117.91
  5. Step 5: Solve for x
    x = 714,827,117.91/30,443.65
  6. Step 6: Final answer
    x = 23,480.34

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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.