Home / 20,030.20-30,008.85-16,312.30

Finding the Fourth Proportional to 20,030.20, 30,008.85 and 16,312.30

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Solution

The fourth proportional to 20,030.20, 30,008.85 and 16,312.30 is: 24,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.20 : 30,008.85 = 16,312.30 : x
  2. Step 2: Convert to fraction form
    20,030.20/30,008.85 = 16,312.30/x
  3. Step 3: Cross multiply
    20,030.20x = 30,008.85 × 16,312.30
  4. Step 4: Simplify right side
    20,030.20x = 489,513,363.86
  5. Step 5: Solve for x
    x = 489,513,363.86/20,030.20
  6. Step 6: Final answer
    x = 24,438.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.