Home / 30,897.38-42,638.28-16,750.19

Finding the Fourth Proportional to 30,897.38, 42,638.28 and 16,750.19

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Solution

The fourth proportional to 30,897.38, 42,638.28 and 16,750.19 is: 23,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.38 : 42,638.28 = 16,750.19 : x
  2. Step 2: Convert to fraction form
    30,897.38/42,638.28 = 16,750.19/x
  3. Step 3: Cross multiply
    30,897.38x = 42,638.28 × 16,750.19
  4. Step 4: Simplify right side
    30,897.38x = 714,199,291.27
  5. Step 5: Solve for x
    x = 714,199,291.27/30,897.38
  6. Step 6: Final answer
    x = 23,115.21

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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.