Home / 22,526.42-31,079.63-15,720.26

Finding the Fourth Proportional to 22,526.42, 31,079.63 and 15,720.26

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Solution

The fourth proportional to 22,526.42, 31,079.63 and 15,720.26 is: 21,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,526.42 : 31,079.63 = 15,720.26 : x
  2. Step 2: Convert to fraction form
    22,526.42/31,079.63 = 15,720.26/x
  3. Step 3: Cross multiply
    22,526.42x = 31,079.63 × 15,720.26
  4. Step 4: Simplify right side
    22,526.42x = 488,579,630.30
  5. Step 5: Solve for x
    x = 488,579,630.30/22,526.42
  6. Step 6: Final answer
    x = 21,689.19

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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.