Home / 28,818.18-39,779.01-16,885.38

Finding the Fourth Proportional to 28,818.18, 39,779.01 and 16,885.38

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Solution

The fourth proportional to 28,818.18, 39,779.01 and 16,885.38 is: 23,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.18 : 39,779.01 = 16,885.38 : x
  2. Step 2: Convert to fraction form
    28,818.18/39,779.01 = 16,885.38/x
  3. Step 3: Cross multiply
    28,818.18x = 39,779.01 × 16,885.38
  4. Step 4: Simplify right side
    28,818.18x = 671,683,699.87
  5. Step 5: Solve for x
    x = 671,683,699.87/28,818.18
  6. Step 6: Final answer
    x = 23,307.64

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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.