Home / 31,125.06-46,686.38-8,938.35

Finding the Fourth Proportional to 31,125.06, 46,686.38 and 8,938.35

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Solution

The fourth proportional to 31,125.06, 46,686.38 and 8,938.35 is: 13,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.06 : 46,686.38 = 8,938.35 : x
  2. Step 2: Convert to fraction form
    31,125.06/46,686.38 = 8,938.35/x
  3. Step 3: Cross multiply
    31,125.06x = 46,686.38 × 8,938.35
  4. Step 4: Simplify right side
    31,125.06x = 417,299,159.98
  5. Step 5: Solve for x
    x = 417,299,159.98/31,125.06
  6. Step 6: Final answer
    x = 13,407.18

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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.