Home / 30,445.17-42,013.49-17,016.51

Finding the Fourth Proportional to 30,445.17, 42,013.49 and 17,016.51

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Solution

The fourth proportional to 30,445.17, 42,013.49 and 17,016.51 is: 23,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.17 : 42,013.49 = 17,016.51 : x
  2. Step 2: Convert to fraction form
    30,445.17/42,013.49 = 17,016.51/x
  3. Step 3: Cross multiply
    30,445.17x = 42,013.49 × 17,016.51
  4. Step 4: Simplify right side
    30,445.17x = 714,922,972.72
  5. Step 5: Solve for x
    x = 714,922,972.72/30,445.17
  6. Step 6: Final answer
    x = 23,482.31

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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.