Home / 30,549.28-42,154.50-17,805.16

Finding the Fourth Proportional to 30,549.28, 42,154.50 and 17,805.16

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Solution

The fourth proportional to 30,549.28, 42,154.50 and 17,805.16 is: 24,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,549.28 : 42,154.50 = 17,805.16 : x
  2. Step 2: Convert to fraction form
    30,549.28/42,154.50 = 17,805.16/x
  3. Step 3: Cross multiply
    30,549.28x = 42,154.50 × 17,805.16
  4. Step 4: Simplify right side
    30,549.28x = 750,567,617.22
  5. Step 5: Solve for x
    x = 750,567,617.22/30,549.28
  6. Step 6: Final answer
    x = 24,569.08

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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.