Home / 16,720.90-23,068.74-10,006.72

Finding the Fourth Proportional to 16,720.90, 23,068.74 and 10,006.72

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Solution

The fourth proportional to 16,720.90, 23,068.74 and 10,006.72 is: 13,805.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.90 : 23,068.74 = 10,006.72 : x
  2. Step 2: Convert to fraction form
    16,720.90/23,068.74 = 10,006.72/x
  3. Step 3: Cross multiply
    16,720.90x = 23,068.74 × 10,006.72
  4. Step 4: Simplify right side
    16,720.90x = 230,842,421.93
  5. Step 5: Solve for x
    x = 230,842,421.93/16,720.90
  6. Step 6: Final answer
    x = 13,805.62

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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.