Home / 30,148.90-41,605.03-16,720.18

Finding the Fourth Proportional to 30,148.90, 41,605.03 and 16,720.18

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Solution

The fourth proportional to 30,148.90, 41,605.03 and 16,720.18 is: 23,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.90 : 41,605.03 = 16,720.18 : x
  2. Step 2: Convert to fraction form
    30,148.90/41,605.03 = 16,720.18/x
  3. Step 3: Cross multiply
    30,148.90x = 41,605.03 × 16,720.18
  4. Step 4: Simplify right side
    30,148.90x = 695,643,590.51
  5. Step 5: Solve for x
    x = 695,643,590.51/30,148.90
  6. Step 6: Final answer
    x = 23,073.60

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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.