Home / 31,436.32-47,153.80-14,787.12

Finding the Fourth Proportional to 31,436.32, 47,153.80 and 14,787.12

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Solution

The fourth proportional to 31,436.32, 47,153.80 and 14,787.12 is: 22,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.32 : 47,153.80 = 14,787.12 : x
  2. Step 2: Convert to fraction form
    31,436.32/47,153.80 = 14,787.12/x
  3. Step 3: Cross multiply
    31,436.32x = 47,153.80 × 14,787.12
  4. Step 4: Simplify right side
    31,436.32x = 697,269,011.19
  5. Step 5: Solve for x
    x = 697,269,011.19/31,436.32
  6. Step 6: Final answer
    x = 22,180.36

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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.