Home / 37,779.32-52,136.40-20,784.02

Finding the Fourth Proportional to 37,779.32, 52,136.40 and 20,784.02

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Solution

The fourth proportional to 37,779.32, 52,136.40 and 20,784.02 is: 28,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,779.32 : 52,136.40 = 20,784.02 : x
  2. Step 2: Convert to fraction form
    37,779.32/52,136.40 = 20,784.02/x
  3. Step 3: Cross multiply
    37,779.32x = 52,136.40 × 20,784.02
  4. Step 4: Simplify right side
    37,779.32x = 1,083,603,876.41
  5. Step 5: Solve for x
    x = 1,083,603,876.41/37,779.32
  6. Step 6: Final answer
    x = 28,682.46

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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.