Home / 21,671.07-29,903.85-14,870.93

Finding the Fourth Proportional to 21,671.07, 29,903.85 and 14,870.93

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Solution

The fourth proportional to 21,671.07, 29,903.85 and 14,870.93 is: 20,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.07 : 29,903.85 = 14,870.93 : x
  2. Step 2: Convert to fraction form
    21,671.07/29,903.85 = 14,870.93/x
  3. Step 3: Cross multiply
    21,671.07x = 29,903.85 × 14,870.93
  4. Step 4: Simplify right side
    21,671.07x = 444,697,910.56
  5. Step 5: Solve for x
    x = 444,697,910.56/21,671.07
  6. Step 6: Final answer
    x = 20,520.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.