Home / 32,990.48-45,564.70-21,710.34

Finding the Fourth Proportional to 32,990.48, 45,564.70 and 21,710.34

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Solution

The fourth proportional to 32,990.48, 45,564.70 and 21,710.34 is: 29,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,990.48 : 45,564.70 = 21,710.34 : x
  2. Step 2: Convert to fraction form
    32,990.48/45,564.70 = 21,710.34/x
  3. Step 3: Cross multiply
    32,990.48x = 45,564.70 × 21,710.34
  4. Step 4: Simplify right side
    32,990.48x = 989,225,129.00
  5. Step 5: Solve for x
    x = 989,225,129.00/32,990.48
  6. Step 6: Final answer
    x = 29,985.17

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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.