Home / 21,386.80-32,058.60-9,708.40

Finding the Fourth Proportional to 21,386.80, 32,058.60 and 9,708.40

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Solution

The fourth proportional to 21,386.80, 32,058.60 and 9,708.40 is: 14,552.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.80 : 32,058.60 = 9,708.40 : x
  2. Step 2: Convert to fraction form
    21,386.80/32,058.60 = 9,708.40/x
  3. Step 3: Cross multiply
    21,386.80x = 32,058.60 × 9,708.40
  4. Step 4: Simplify right side
    21,386.80x = 311,237,712.24
  5. Step 5: Solve for x
    x = 311,237,712.24/21,386.80
  6. Step 6: Final answer
    x = 14,552.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.