Home / 21,430.13-32,146.70-6,637.10

Finding the Fourth Proportional to 21,430.13, 32,146.70 and 6,637.10

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Solution

The fourth proportional to 21,430.13, 32,146.70 and 6,637.10 is: 9,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.13 : 32,146.70 = 6,637.10 : x
  2. Step 2: Convert to fraction form
    21,430.13/32,146.70 = 6,637.10/x
  3. Step 3: Cross multiply
    21,430.13x = 32,146.70 × 6,637.10
  4. Step 4: Simplify right side
    21,430.13x = 213,360,862.57
  5. Step 5: Solve for x
    x = 213,360,862.57/21,430.13
  6. Step 6: Final answer
    x = 9,956.12

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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.