Home / 28,045.36-38,700.84-15,470.08

Finding the Fourth Proportional to 28,045.36, 38,700.84 and 15,470.08

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Solution

The fourth proportional to 28,045.36, 38,700.84 and 15,470.08 is: 21,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.36 : 38,700.84 = 15,470.08 : x
  2. Step 2: Convert to fraction form
    28,045.36/38,700.84 = 15,470.08/x
  3. Step 3: Cross multiply
    28,045.36x = 38,700.84 × 15,470.08
  4. Step 4: Simplify right side
    28,045.36x = 598,705,090.87
  5. Step 5: Solve for x
    x = 598,705,090.87/28,045.36
  6. Step 6: Final answer
    x = 21,347.74

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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.