Home / 31,108.48-46,690.78-21,088.98

Finding the Fourth Proportional to 31,108.48, 46,690.78 and 21,088.98

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Solution

The fourth proportional to 31,108.48, 46,690.78 and 21,088.98 is: 31,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.48 : 46,690.78 = 21,088.98 : x
  2. Step 2: Convert to fraction form
    31,108.48/46,690.78 = 21,088.98/x
  3. Step 3: Cross multiply
    31,108.48x = 46,690.78 × 21,088.98
  4. Step 4: Simplify right side
    31,108.48x = 984,660,925.60
  5. Step 5: Solve for x
    x = 984,660,925.60/31,108.48
  6. Step 6: Final answer
    x = 31,652.49

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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.