Home / 31,455.36-47,199.36-13,937.28

Finding the Fourth Proportional to 31,455.36, 47,199.36 and 13,937.28

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Solution

The fourth proportional to 31,455.36, 47,199.36 and 13,937.28 is: 20,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.36 : 47,199.36 = 13,937.28 : x
  2. Step 2: Convert to fraction form
    31,455.36/47,199.36 = 13,937.28/x
  3. Step 3: Cross multiply
    31,455.36x = 47,199.36 × 13,937.28
  4. Step 4: Simplify right side
    31,455.36x = 657,830,696.14
  5. Step 5: Solve for x
    x = 657,830,696.14/31,455.36
  6. Step 6: Final answer
    x = 20,913.15

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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.