Home / 31,531.48-47,293.56-8,156.08

Finding the Fourth Proportional to 31,531.48, 47,293.56 and 8,156.08

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Solution

The fourth proportional to 31,531.48, 47,293.56 and 8,156.08 is: 12,233.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.48 : 47,293.56 = 8,156.08 : x
  2. Step 2: Convert to fraction form
    31,531.48/47,293.56 = 8,156.08/x
  3. Step 3: Cross multiply
    31,531.48x = 47,293.56 × 8,156.08
  4. Step 4: Simplify right side
    31,531.48x = 385,730,058.84
  5. Step 5: Solve for x
    x = 385,730,058.84/31,531.48
  6. Step 6: Final answer
    x = 12,233.17

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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.