Home / 30,577.35-42,197.18-18,476.16

Finding the Fourth Proportional to 30,577.35, 42,197.18 and 18,476.16

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Solution

The fourth proportional to 30,577.35, 42,197.18 and 18,476.16 is: 25,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,577.35 : 42,197.18 = 18,476.16 : x
  2. Step 2: Convert to fraction form
    30,577.35/42,197.18 = 18,476.16/x
  3. Step 3: Cross multiply
    30,577.35x = 42,197.18 × 18,476.16
  4. Step 4: Simplify right side
    30,577.35x = 779,641,598.61
  5. Step 5: Solve for x
    x = 779,641,598.61/30,577.35
  6. Step 6: Final answer
    x = 25,497.35

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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.