Home / 31,106.77-46,679.51-12,638.77

Finding the Fourth Proportional to 31,106.77, 46,679.51 and 12,638.77

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Solution

The fourth proportional to 31,106.77, 46,679.51 and 12,638.77 is: 18,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.77 : 46,679.51 = 12,638.77 : x
  2. Step 2: Convert to fraction form
    31,106.77/46,679.51 = 12,638.77/x
  3. Step 3: Cross multiply
    31,106.77x = 46,679.51 × 12,638.77
  4. Step 4: Simplify right side
    31,106.77x = 589,971,527.41
  5. Step 5: Solve for x
    x = 589,971,527.41/31,106.77
  6. Step 6: Final answer
    x = 18,966.02

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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.