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Finding the Fourth Proportional to 46,651.40, 70,001.40 and 20,358.80

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Solution

The fourth proportional to 46,651.40, 70,001.40 and 20,358.80 is: 30,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,651.40 : 70,001.40 = 20,358.80 : x
  2. Step 2: Convert to fraction form
    46,651.40/70,001.40 = 20,358.80/x
  3. Step 3: Cross multiply
    46,651.40x = 70,001.40 × 20,358.80
  4. Step 4: Simplify right side
    46,651.40x = 1,425,144,502.32
  5. Step 5: Solve for x
    x = 1,425,144,502.32/46,651.40
  6. Step 6: Final answer
    x = 30,548.80

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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.