Home / 30,001.81-41,401.90-16,572.94

Finding the Fourth Proportional to 30,001.81, 41,401.90 and 16,572.94

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Solution

The fourth proportional to 30,001.81, 41,401.90 and 16,572.94 is: 22,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.81 : 41,401.90 = 16,572.94 : x
  2. Step 2: Convert to fraction form
    30,001.81/41,401.90 = 16,572.94/x
  3. Step 3: Cross multiply
    30,001.81x = 41,401.90 × 16,572.94
  4. Step 4: Simplify right side
    30,001.81x = 686,151,331.42
  5. Step 5: Solve for x
    x = 686,151,331.42/30,001.81
  6. Step 6: Final answer
    x = 22,870.33

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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.