Home / 31,669.95-47,487.36-12,963.12

Finding the Fourth Proportional to 31,669.95, 47,487.36 and 12,963.12

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Solution

The fourth proportional to 31,669.95, 47,487.36 and 12,963.12 is: 19,437.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.95 : 47,487.36 = 12,963.12 : x
  2. Step 2: Convert to fraction form
    31,669.95/47,487.36 = 12,963.12/x
  3. Step 3: Cross multiply
    31,669.95x = 47,487.36 × 12,963.12
  4. Step 4: Simplify right side
    31,669.95x = 615,584,346.16
  5. Step 5: Solve for x
    x = 615,584,346.16/31,669.95
  6. Step 6: Final answer
    x = 19,437.49

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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.