Home / 30,929.46-42,683.48-16,782.29

Finding the Fourth Proportional to 30,929.46, 42,683.48 and 16,782.29

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Solution

The fourth proportional to 30,929.46, 42,683.48 and 16,782.29 is: 23,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,929.46 : 42,683.48 = 16,782.29 : x
  2. Step 2: Convert to fraction form
    30,929.46/42,683.48 = 16,782.29/x
  3. Step 3: Cross multiply
    30,929.46x = 42,683.48 × 16,782.29
  4. Step 4: Simplify right side
    30,929.46x = 716,326,539.57
  5. Step 5: Solve for x
    x = 716,326,539.57/30,929.46
  6. Step 6: Final answer
    x = 23,160.01

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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.