Home / 39,011.51-53,835.90-21,106.46

Finding the Fourth Proportional to 39,011.51, 53,835.90 and 21,106.46

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Solution

The fourth proportional to 39,011.51, 53,835.90 and 21,106.46 is: 29,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,011.51 : 53,835.90 = 21,106.46 : x
  2. Step 2: Convert to fraction form
    39,011.51/53,835.90 = 21,106.46/x
  3. Step 3: Cross multiply
    39,011.51x = 53,835.90 × 21,106.46
  4. Step 4: Simplify right side
    39,011.51x = 1,136,285,269.91
  5. Step 5: Solve for x
    x = 1,136,285,269.91/39,011.51
  6. Step 6: Final answer
    x = 29,126.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.