Home / 28,053.07-38,710.53-15,477.01

Finding the Fourth Proportional to 28,053.07, 38,710.53 and 15,477.01

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Solution

The fourth proportional to 28,053.07, 38,710.53 and 15,477.01 is: 21,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.07 : 38,710.53 = 15,477.01 : x
  2. Step 2: Convert to fraction form
    28,053.07/38,710.53 = 15,477.01/x
  3. Step 3: Cross multiply
    28,053.07x = 38,710.53 × 15,477.01
  4. Step 4: Simplify right side
    28,053.07x = 599,123,259.92
  5. Step 5: Solve for x
    x = 599,123,259.92/28,053.07
  6. Step 6: Final answer
    x = 21,356.78

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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.