Home / 28,501.79-39,332.18-15,926.54

Finding the Fourth Proportional to 28,501.79, 39,332.18 and 15,926.54

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Solution

The fourth proportional to 28,501.79, 39,332.18 and 15,926.54 is: 21,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.79 : 39,332.18 = 15,926.54 : x
  2. Step 2: Convert to fraction form
    28,501.79/39,332.18 = 15,926.54/x
  3. Step 3: Cross multiply
    28,501.79x = 39,332.18 × 15,926.54
  4. Step 4: Simplify right side
    28,501.79x = 626,425,381.21
  5. Step 5: Solve for x
    x = 626,425,381.21/28,501.79
  6. Step 6: Final answer
    x = 21,978.46

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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.