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Finding the Fourth Proportional to 35,432.40, 53,209.40 and 19,630.80

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Solution

The fourth proportional to 35,432.40, 53,209.40 and 19,630.80 is: 29,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,432.40 : 53,209.40 = 19,630.80 : x
  2. Step 2: Convert to fraction form
    35,432.40/53,209.40 = 19,630.80/x
  3. Step 3: Cross multiply
    35,432.40x = 53,209.40 × 19,630.80
  4. Step 4: Simplify right side
    35,432.40x = 1,044,543,089.52
  5. Step 5: Solve for x
    x = 1,044,543,089.52/35,432.40
  6. Step 6: Final answer
    x = 29,479.89

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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.