Home / 21,800.34-32,681.70-9,783.36

Finding the Fourth Proportional to 21,800.34, 32,681.70 and 9,783.36

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Solution

The fourth proportional to 21,800.34, 32,681.70 and 9,783.36 is: 14,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.34 : 32,681.70 = 9,783.36 : x
  2. Step 2: Convert to fraction form
    21,800.34/32,681.70 = 9,783.36/x
  3. Step 3: Cross multiply
    21,800.34x = 32,681.70 × 9,783.36
  4. Step 4: Simplify right side
    21,800.34x = 319,736,836.51
  5. Step 5: Solve for x
    x = 319,736,836.51/21,800.34
  6. Step 6: Final answer
    x = 14,666.60

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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.