Home / 30,559.71-42,170.28-16,948.47

Finding the Fourth Proportional to 30,559.71, 42,170.28 and 16,948.47

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Solution

The fourth proportional to 30,559.71, 42,170.28 and 16,948.47 is: 23,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559.71 : 42,170.28 = 16,948.47 : x
  2. Step 2: Convert to fraction form
    30,559.71/42,170.28 = 16,948.47/x
  3. Step 3: Cross multiply
    30,559.71x = 42,170.28 × 16,948.47
  4. Step 4: Simplify right side
    30,559.71x = 714,721,683.10
  5. Step 5: Solve for x
    x = 714,721,683.10/30,559.71
  6. Step 6: Final answer
    x = 23,387.71

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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.