Home / 31,616.32-47,427.16-12,897.63

Finding the Fourth Proportional to 31,616.32, 47,427.16 and 12,897.63

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Solution

The fourth proportional to 31,616.32, 47,427.16 and 12,897.63 is: 19,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.32 : 47,427.16 = 12,897.63 : x
  2. Step 2: Convert to fraction form
    31,616.32/47,427.16 = 12,897.63/x
  3. Step 3: Cross multiply
    31,616.32x = 47,427.16 × 12,897.63
  4. Step 4: Simplify right side
    31,616.32x = 611,697,724.50
  5. Step 5: Solve for x
    x = 611,697,724.50/31,616.32
  6. Step 6: Final answer
    x = 19,347.53

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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.