Home / 42,386.40-63,590.20-29,930.80

Finding the Fourth Proportional to 42,386.40, 63,590.20 and 29,930.80

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Solution

The fourth proportional to 42,386.40, 63,590.20 and 29,930.80 is: 44,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,386.40 : 63,590.20 = 29,930.80 : x
  2. Step 2: Convert to fraction form
    42,386.40/63,590.20 = 29,930.80/x
  3. Step 3: Cross multiply
    42,386.40x = 63,590.20 × 29,930.80
  4. Step 4: Simplify right side
    42,386.40x = 1,903,305,558.16
  5. Step 5: Solve for x
    x = 1,903,305,558.16/42,386.40
  6. Step 6: Final answer
    x = 44,903.69

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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.