Home / 28,077.37-38,746.47-15,330.51

Finding the Fourth Proportional to 28,077.37, 38,746.47 and 15,330.51

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Solution

The fourth proportional to 28,077.37, 38,746.47 and 15,330.51 is: 21,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.37 : 38,746.47 = 15,330.51 : x
  2. Step 2: Convert to fraction form
    28,077.37/38,746.47 = 15,330.51/x
  3. Step 3: Cross multiply
    28,077.37x = 38,746.47 × 15,330.51
  4. Step 4: Simplify right side
    28,077.37x = 594,003,145.80
  5. Step 5: Solve for x
    x = 594,003,145.80/28,077.37
  6. Step 6: Final answer
    x = 21,155.94

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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.