Home / 34,807.90-47,998.60-20,658.02

Finding the Fourth Proportional to 34,807.90, 47,998.60 and 20,658.02

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Solution

The fourth proportional to 34,807.90, 47,998.60 and 20,658.02 is: 28,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,807.90 : 47,998.60 = 20,658.02 : x
  2. Step 2: Convert to fraction form
    34,807.90/47,998.60 = 20,658.02/x
  3. Step 3: Cross multiply
    34,807.90x = 47,998.60 × 20,658.02
  4. Step 4: Simplify right side
    34,807.90x = 991,556,038.77
  5. Step 5: Solve for x
    x = 991,556,038.77/34,807.90
  6. Step 6: Final answer
    x = 28,486.52

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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.