Home / 28,045.68-38,703.60-15,298.68

Finding the Fourth Proportional to 28,045.68, 38,703.60 and 15,298.68

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Solution

The fourth proportional to 28,045.68, 38,703.60 and 15,298.68 is: 21,112.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.68 : 38,703.60 = 15,298.68 : x
  2. Step 2: Convert to fraction form
    28,045.68/38,703.60 = 15,298.68/x
  3. Step 3: Cross multiply
    28,045.68x = 38,703.60 × 15,298.68
  4. Step 4: Simplify right side
    28,045.68x = 592,113,991.25
  5. Step 5: Solve for x
    x = 592,113,991.25/28,045.68
  6. Step 6: Final answer
    x = 21,112.48

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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.