Home / 31,805.04-47,726.32-12,100.16

Finding the Fourth Proportional to 31,805.04, 47,726.32 and 12,100.16

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Solution

The fourth proportional to 31,805.04, 47,726.32 and 12,100.16 is: 18,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,805.04 : 47,726.32 = 12,100.16 : x
  2. Step 2: Convert to fraction form
    31,805.04/47,726.32 = 12,100.16/x
  3. Step 3: Cross multiply
    31,805.04x = 47,726.32 × 12,100.16
  4. Step 4: Simplify right side
    31,805.04x = 577,496,108.21
  5. Step 5: Solve for x
    x = 577,496,108.21/31,805.04
  6. Step 6: Final answer
    x = 18,157.38

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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.