Home / 20,746.90-31,074.63-17,148.16

Finding the Fourth Proportional to 20,746.90, 31,074.63 and 17,148.16

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Solution

The fourth proportional to 20,746.90, 31,074.63 and 17,148.16 is: 25,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.90 : 31,074.63 = 17,148.16 : x
  2. Step 2: Convert to fraction form
    20,746.90/31,074.63 = 17,148.16/x
  3. Step 3: Cross multiply
    20,746.90x = 31,074.63 × 17,148.16
  4. Step 4: Simplify right side
    20,746.90x = 532,872,727.18
  5. Step 5: Solve for x
    x = 532,872,727.18/20,746.90
  6. Step 6: Final answer
    x = 25,684.45

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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.