Home / 21,390.16-32,077.02-7,347.56

Finding the Fourth Proportional to 21,390.16, 32,077.02 and 7,347.56

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Solution

The fourth proportional to 21,390.16, 32,077.02 and 7,347.56 is: 11,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.16 : 32,077.02 = 7,347.56 : x
  2. Step 2: Convert to fraction form
    21,390.16/32,077.02 = 7,347.56/x
  3. Step 3: Cross multiply
    21,390.16x = 32,077.02 × 7,347.56
  4. Step 4: Simplify right side
    21,390.16x = 235,687,829.07
  5. Step 5: Solve for x
    x = 235,687,829.07/21,390.16
  6. Step 6: Final answer
    x = 11,018.52

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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.