Home / 28,700.05-39,605.81-15,952.91

Finding the Fourth Proportional to 28,700.05, 39,605.81 and 15,952.91

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Solution

The fourth proportional to 28,700.05, 39,605.81 and 15,952.91 is: 22,014.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.05 : 39,605.81 = 15,952.91 : x
  2. Step 2: Convert to fraction form
    28,700.05/39,605.81 = 15,952.91/x
  3. Step 3: Cross multiply
    28,700.05x = 39,605.81 × 15,952.91
  4. Step 4: Simplify right side
    28,700.05x = 631,827,714.06
  5. Step 5: Solve for x
    x = 631,827,714.06/28,700.05
  6. Step 6: Final answer
    x = 22,014.87

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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.