Home / 30,637.29-42,279.63-17,208.55

Finding the Fourth Proportional to 30,637.29, 42,279.63 and 17,208.55

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Solution

The fourth proportional to 30,637.29, 42,279.63 and 17,208.55 is: 23,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.29 : 42,279.63 = 17,208.55 : x
  2. Step 2: Convert to fraction form
    30,637.29/42,279.63 = 17,208.55/x
  3. Step 3: Cross multiply
    30,637.29x = 42,279.63 × 17,208.55
  4. Step 4: Simplify right side
    30,637.29x = 727,570,829.40
  5. Step 5: Solve for x
    x = 727,570,829.40/30,637.29
  6. Step 6: Final answer
    x = 23,747.89

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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.