Home / 22,985.10-31,720.78-17,309.84

Finding the Fourth Proportional to 22,985.10, 31,720.78 and 17,309.84

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Solution

The fourth proportional to 22,985.10, 31,720.78 and 17,309.84 is: 23,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.10 : 31,720.78 = 17,309.84 : x
  2. Step 2: Convert to fraction form
    22,985.10/31,720.78 = 17,309.84/x
  3. Step 3: Cross multiply
    22,985.10x = 31,720.78 × 17,309.84
  4. Step 4: Simplify right side
    22,985.10x = 549,081,489.51
  5. Step 5: Solve for x
    x = 549,081,489.51/22,985.10
  6. Step 6: Final answer
    x = 23,888.58

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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.