Home / 39,434.40-59,156.64-12,777.12

Finding the Fourth Proportional to 39,434.40, 59,156.64 and 12,777.12

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Solution

The fourth proportional to 39,434.40, 59,156.64 and 12,777.12 is: 19,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,434.40 : 59,156.64 = 12,777.12 : x
  2. Step 2: Convert to fraction form
    39,434.40/59,156.64 = 12,777.12/x
  3. Step 3: Cross multiply
    39,434.40x = 59,156.64 × 12,777.12
  4. Step 4: Simplify right side
    39,434.40x = 755,851,488.08
  5. Step 5: Solve for x
    x = 755,851,488.08/39,434.40
  6. Step 6: Final answer
    x = 19,167.31

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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.