Home / 39,819.60-59,703.12-19,031.76

Finding the Fourth Proportional to 39,819.60, 59,703.12 and 19,031.76

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Solution

The fourth proportional to 39,819.60, 59,703.12 and 19,031.76 is: 28,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.60 : 59,703.12 = 19,031.76 : x
  2. Step 2: Convert to fraction form
    39,819.60/59,703.12 = 19,031.76/x
  3. Step 3: Cross multiply
    39,819.60x = 59,703.12 × 19,031.76
  4. Step 4: Simplify right side
    39,819.60x = 1,136,255,451.09
  5. Step 5: Solve for x
    x = 1,136,255,451.09/39,819.60
  6. Step 6: Final answer
    x = 28,535.08

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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.