Home / 28,630.86-39,510.45-16,055.61

Finding the Fourth Proportional to 28,630.86, 39,510.45 and 16,055.61

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Solution

The fourth proportional to 28,630.86, 39,510.45 and 16,055.61 is: 22,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.86 : 39,510.45 = 16,055.61 : x
  2. Step 2: Convert to fraction form
    28,630.86/39,510.45 = 16,055.61/x
  3. Step 3: Cross multiply
    28,630.86x = 39,510.45 × 16,055.61
  4. Step 4: Simplify right side
    28,630.86x = 634,364,376.12
  5. Step 5: Solve for x
    x = 634,364,376.12/28,630.86
  6. Step 6: Final answer
    x = 22,156.67

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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.