Home / 20,680.04-31,015.35-5,888.63

Finding the Fourth Proportional to 20,680.04, 31,015.35 and 5,888.63

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Solution

The fourth proportional to 20,680.04, 31,015.35 and 5,888.63 is: 8,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.04 : 31,015.35 = 5,888.63 : x
  2. Step 2: Convert to fraction form
    20,680.04/31,015.35 = 5,888.63/x
  3. Step 3: Cross multiply
    20,680.04x = 31,015.35 × 5,888.63
  4. Step 4: Simplify right side
    20,680.04x = 182,637,920.47
  5. Step 5: Solve for x
    x = 182,637,920.47/20,680.04
  6. Step 6: Final answer
    x = 8,831.60

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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.