Home / 30,530.51-42,152.66-19,062.88

Finding the Fourth Proportional to 30,530.51, 42,152.66 and 19,062.88

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Solution

The fourth proportional to 30,530.51, 42,152.66 and 19,062.88 is: 26,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.51 : 42,152.66 = 19,062.88 : x
  2. Step 2: Convert to fraction form
    30,530.51/42,152.66 = 19,062.88/x
  3. Step 3: Cross multiply
    30,530.51x = 42,152.66 × 19,062.88
  4. Step 4: Simplify right side
    30,530.51x = 803,550,793.18
  5. Step 5: Solve for x
    x = 803,550,793.18/30,530.51
  6. Step 6: Final answer
    x = 26,319.60

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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.