Home / 30,445.14-42,009.16-17,016.51

Finding the Fourth Proportional to 30,445.14, 42,009.16 and 17,016.51

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Solution

The fourth proportional to 30,445.14, 42,009.16 and 17,016.51 is: 23,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.14 : 42,009.16 = 17,016.51 : x
  2. Step 2: Convert to fraction form
    30,445.14/42,009.16 = 17,016.51/x
  3. Step 3: Cross multiply
    30,445.14x = 42,009.16 × 17,016.51
  4. Step 4: Simplify right side
    30,445.14x = 714,849,291.23
  5. Step 5: Solve for x
    x = 714,849,291.23/30,445.14
  6. Step 6: Final answer
    x = 23,479.91

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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.