Home / 31,555.68-47,356.98-14,920.80

Finding the Fourth Proportional to 31,555.68, 47,356.98 and 14,920.80

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Solution

The fourth proportional to 31,555.68, 47,356.98 and 14,920.80 is: 22,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555.68 : 47,356.98 = 14,920.80 : x
  2. Step 2: Convert to fraction form
    31,555.68/47,356.98 = 14,920.80/x
  3. Step 3: Cross multiply
    31,555.68x = 47,356.98 × 14,920.80
  4. Step 4: Simplify right side
    31,555.68x = 706,604,027.18
  5. Step 5: Solve for x
    x = 706,604,027.18/31,555.68
  6. Step 6: Final answer
    x = 22,392.29

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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.