Home / 22,762.32-31,393.80-15,687.12

Finding the Fourth Proportional to 22,762.32, 31,393.80 and 15,687.12

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Solution

The fourth proportional to 22,762.32, 31,393.80 and 15,687.12 is: 21,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,762.32 : 31,393.80 = 15,687.12 : x
  2. Step 2: Convert to fraction form
    22,762.32/31,393.80 = 15,687.12/x
  3. Step 3: Cross multiply
    22,762.32x = 31,393.80 × 15,687.12
  4. Step 4: Simplify right side
    22,762.32x = 492,478,307.86
  5. Step 5: Solve for x
    x = 492,478,307.86/22,762.32
  6. Step 6: Final answer
    x = 21,635.68

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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.