Home / 20,707.99-28,577.98-12,210.48

Finding the Fourth Proportional to 20,707.99, 28,577.98 and 12,210.48

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Solution

The fourth proportional to 20,707.99, 28,577.98 and 12,210.48 is: 16,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.99 : 28,577.98 = 12,210.48 : x
  2. Step 2: Convert to fraction form
    20,707.99/28,577.98 = 12,210.48/x
  3. Step 3: Cross multiply
    20,707.99x = 28,577.98 × 12,210.48
  4. Step 4: Simplify right side
    20,707.99x = 348,950,868.49
  5. Step 5: Solve for x
    x = 348,950,868.49/20,707.99
  6. Step 6: Final answer
    x = 16,851.03

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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.