Home / 20,616.06-28,460.67-13,070.10

Finding the Fourth Proportional to 20,616.06, 28,460.67 and 13,070.10

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Solution

The fourth proportional to 20,616.06, 28,460.67 and 13,070.10 is: 18,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.06 : 28,460.67 = 13,070.10 : x
  2. Step 2: Convert to fraction form
    20,616.06/28,460.67 = 13,070.10/x
  3. Step 3: Cross multiply
    20,616.06x = 28,460.67 × 13,070.10
  4. Step 4: Simplify right side
    20,616.06x = 371,983,802.97
  5. Step 5: Solve for x
    x = 371,983,802.97/20,616.06
  6. Step 6: Final answer
    x = 18,043.40

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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.