Home / 17,720.16-26,609.40-15,547.20

Finding the Fourth Proportional to 17,720.16, 26,609.40 and 15,547.20

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Solution

The fourth proportional to 17,720.16, 26,609.40 and 15,547.20 is: 23,346.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.16 : 26,609.40 = 15,547.20 : x
  2. Step 2: Convert to fraction form
    17,720.16/26,609.40 = 15,547.20/x
  3. Step 3: Cross multiply
    17,720.16x = 26,609.40 × 15,547.20
  4. Step 4: Simplify right side
    17,720.16x = 413,701,663.68
  5. Step 5: Solve for x
    x = 413,701,663.68/17,720.16
  6. Step 6: Final answer
    x = 23,346.38

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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.