Home / 30,851.71-42,596.08-28,732.82

Finding the Fourth Proportional to 30,851.71, 42,596.08 and 28,732.82

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Solution

The fourth proportional to 30,851.71, 42,596.08 and 28,732.82 is: 39,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,851.71 : 42,596.08 = 28,732.82 : x
  2. Step 2: Convert to fraction form
    30,851.71/42,596.08 = 28,732.82/x
  3. Step 3: Cross multiply
    30,851.71x = 42,596.08 × 28,732.82
  4. Step 4: Simplify right side
    30,851.71x = 1,223,905,214.53
  5. Step 5: Solve for x
    x = 1,223,905,214.53/30,851.71
  6. Step 6: Final answer
    x = 39,670.58

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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.