Home / 21,388.29-32,070.88-9,695.13

Finding the Fourth Proportional to 21,388.29, 32,070.88 and 9,695.13

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Solution

The fourth proportional to 21,388.29, 32,070.88 and 9,695.13 is: 14,537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.29 : 32,070.88 = 9,695.13 : x
  2. Step 2: Convert to fraction form
    21,388.29/32,070.88 = 9,695.13/x
  3. Step 3: Cross multiply
    21,388.29x = 32,070.88 × 9,695.13
  4. Step 4: Simplify right side
    21,388.29x = 310,931,350.81
  5. Step 5: Solve for x
    x = 310,931,350.81/21,388.29
  6. Step 6: Final answer
    x = 14,537.46

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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.