Home / 42,005.51-63,009.48-15,705.23

Finding the Fourth Proportional to 42,005.51, 63,009.48 and 15,705.23

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Solution

The fourth proportional to 42,005.51, 63,009.48 and 15,705.23 is: 23,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.51 : 63,009.48 = 15,705.23 : x
  2. Step 2: Convert to fraction form
    42,005.51/63,009.48 = 15,705.23/x
  3. Step 3: Cross multiply
    42,005.51x = 63,009.48 × 15,705.23
  4. Step 4: Simplify right side
    42,005.51x = 989,578,375.58
  5. Step 5: Solve for x
    x = 989,578,375.58/42,005.51
  6. Step 6: Final answer
    x = 23,558.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.