Home / 21,430.53-32,166.54-10,345.01

Finding the Fourth Proportional to 21,430.53, 32,166.54 and 10,345.01

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Solution

The fourth proportional to 21,430.53, 32,166.54 and 10,345.01 is: 15,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.53 : 32,166.54 = 10,345.01 : x
  2. Step 2: Convert to fraction form
    21,430.53/32,166.54 = 10,345.01/x
  3. Step 3: Cross multiply
    21,430.53x = 32,166.54 × 10,345.01
  4. Step 4: Simplify right side
    21,430.53x = 332,763,017.13
  5. Step 5: Solve for x
    x = 332,763,017.13/21,430.53
  6. Step 6: Final answer
    x = 15,527.52

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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.