Home / 31,526.21-47,307.65-11,818.51

Finding the Fourth Proportional to 31,526.21, 47,307.65 and 11,818.51

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Solution

The fourth proportional to 31,526.21, 47,307.65 and 11,818.51 is: 17,734.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.21 : 47,307.65 = 11,818.51 : x
  2. Step 2: Convert to fraction form
    31,526.21/47,307.65 = 11,818.51/x
  3. Step 3: Cross multiply
    31,526.21x = 47,307.65 × 11,818.51
  4. Step 4: Simplify right side
    31,526.21x = 559,105,757.24
  5. Step 5: Solve for x
    x = 559,105,757.24/31,526.21
  6. Step 6: Final answer
    x = 17,734.63

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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.