Home / 28,038.09-38,688.12-16,707.30

Finding the Fourth Proportional to 28,038.09, 38,688.12 and 16,707.30

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Solution

The fourth proportional to 28,038.09, 38,688.12 and 16,707.30 is: 23,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.09 : 38,688.12 = 16,707.30 : x
  2. Step 2: Convert to fraction form
    28,038.09/38,688.12 = 16,707.30/x
  3. Step 3: Cross multiply
    28,038.09x = 38,688.12 × 16,707.30
  4. Step 4: Simplify right side
    28,038.09x = 646,374,027.28
  5. Step 5: Solve for x
    x = 646,374,027.28/28,038.09
  6. Step 6: Final answer
    x = 23,053.43

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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.