Home / 31,461.95-47,150.99-11,720.63

Finding the Fourth Proportional to 31,461.95, 47,150.99 and 11,720.63

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Solution

The fourth proportional to 31,461.95, 47,150.99 and 11,720.63 is: 17,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.95 : 47,150.99 = 11,720.63 : x
  2. Step 2: Convert to fraction form
    31,461.95/47,150.99 = 11,720.63/x
  3. Step 3: Cross multiply
    31,461.95x = 47,150.99 × 11,720.63
  4. Step 4: Simplify right side
    31,461.95x = 552,639,249.32
  5. Step 5: Solve for x
    x = 552,639,249.32/31,461.95
  6. Step 6: Final answer
    x = 17,565.32

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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.