Home / 21,510.48-32,239.80-9,807.60

Finding the Fourth Proportional to 21,510.48, 32,239.80 and 9,807.60

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Solution

The fourth proportional to 21,510.48, 32,239.80 and 9,807.60 is: 14,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510.48 : 32,239.80 = 9,807.60 : x
  2. Step 2: Convert to fraction form
    21,510.48/32,239.80 = 9,807.60/x
  3. Step 3: Cross multiply
    21,510.48x = 32,239.80 × 9,807.60
  4. Step 4: Simplify right side
    21,510.48x = 316,195,062.48
  5. Step 5: Solve for x
    x = 316,195,062.48/21,510.48
  6. Step 6: Final answer
    x = 14,699.58

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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.