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Finding the Fourth Proportional to 42,898.40, 64,347.65 and 11,733.65

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Solution

The fourth proportional to 42,898.40, 64,347.65 and 11,733.65 is: 17,600.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,898.40 : 64,347.65 = 11,733.65 : x
  2. Step 2: Convert to fraction form
    42,898.40/64,347.65 = 11,733.65/x
  3. Step 3: Cross multiply
    42,898.40x = 64,347.65 × 11,733.65
  4. Step 4: Simplify right side
    42,898.40x = 755,032,803.42
  5. Step 5: Solve for x
    x = 755,032,803.42/42,898.40
  6. Step 6: Final answer
    x = 17,600.49

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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.