Home / 28,032.17-38,693.76-16,705.21

Finding the Fourth Proportional to 28,032.17, 38,693.76 and 16,705.21

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Solution

The fourth proportional to 28,032.17, 38,693.76 and 16,705.21 is: 23,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.17 : 38,693.76 = 16,705.21 : x
  2. Step 2: Convert to fraction form
    28,032.17/38,693.76 = 16,705.21/x
  3. Step 3: Cross multiply
    28,032.17x = 38,693.76 × 16,705.21
  4. Step 4: Simplify right side
    28,032.17x = 646,387,386.49
  5. Step 5: Solve for x
    x = 646,387,386.49/28,032.17
  6. Step 6: Final answer
    x = 23,058.77

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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.