Home / 28,053.04-38,711.52-15,477.76

Finding the Fourth Proportional to 28,053.04, 38,711.52 and 15,477.76

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Solution

The fourth proportional to 28,053.04, 38,711.52 and 15,477.76 is: 21,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.04 : 38,711.52 = 15,477.76 : x
  2. Step 2: Convert to fraction form
    28,053.04/38,711.52 = 15,477.76/x
  3. Step 3: Cross multiply
    28,053.04x = 38,711.52 × 15,477.76
  4. Step 4: Simplify right side
    28,053.04x = 599,167,615.80
  5. Step 5: Solve for x
    x = 599,167,615.80/28,053.04
  6. Step 6: Final answer
    x = 21,358.38

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Half scale
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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.