Home / 21,557.40-32,336.10-7,703.64

Finding the Fourth Proportional to 21,557.40, 32,336.10 and 7,703.64

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Solution

The fourth proportional to 21,557.40, 32,336.10 and 7,703.64 is: 11,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.40 : 32,336.10 = 7,703.64 : x
  2. Step 2: Convert to fraction form
    21,557.40/32,336.10 = 7,703.64/x
  3. Step 3: Cross multiply
    21,557.40x = 32,336.10 × 7,703.64
  4. Step 4: Simplify right side
    21,557.40x = 249,105,673.40
  5. Step 5: Solve for x
    x = 249,105,673.40/21,557.40
  6. Step 6: Final answer
    x = 11,555.46

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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.