Home / 30,436.40-42,002.45-17,008.22

Finding the Fourth Proportional to 30,436.40, 42,002.45 and 17,008.22

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Solution

The fourth proportional to 30,436.40, 42,002.45 and 17,008.22 is: 23,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.40 : 42,002.45 = 17,008.22 : x
  2. Step 2: Convert to fraction form
    30,436.40/42,002.45 = 17,008.22/x
  3. Step 3: Cross multiply
    30,436.40x = 42,002.45 × 17,008.22
  4. Step 4: Simplify right side
    30,436.40x = 714,386,615.09
  5. Step 5: Solve for x
    x = 714,386,615.09/30,436.40
  6. Step 6: Final answer
    x = 23,471.46

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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.