Home / 28,700.21-39,606.01-15,953.06

Finding the Fourth Proportional to 28,700.21, 39,606.01 and 15,953.06

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Solution

The fourth proportional to 28,700.21, 39,606.01 and 15,953.06 is: 22,015.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.21 : 39,606.01 = 15,953.06 : x
  2. Step 2: Convert to fraction form
    28,700.21/39,606.01 = 15,953.06/x
  3. Step 3: Cross multiply
    28,700.21x = 39,606.01 × 15,953.06
  4. Step 4: Simplify right side
    28,700.21x = 631,837,053.89
  5. Step 5: Solve for x
    x = 631,837,053.89/28,700.21
  6. Step 6: Final answer
    x = 22,015.07

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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.