Home / 31,130.33-46,681.52-8,938.76

Finding the Fourth Proportional to 31,130.33, 46,681.52 and 8,938.76

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Solution

The fourth proportional to 31,130.33, 46,681.52 and 8,938.76 is: 13,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.33 : 46,681.52 = 8,938.76 : x
  2. Step 2: Convert to fraction form
    31,130.33/46,681.52 = 8,938.76/x
  3. Step 3: Cross multiply
    31,130.33x = 46,681.52 × 8,938.76
  4. Step 4: Simplify right side
    31,130.33x = 417,274,625.61
  5. Step 5: Solve for x
    x = 417,274,625.61/31,130.33
  6. Step 6: Final answer
    x = 13,404.12

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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.