Home / 28,148.79-42,151.75-16,897.13

Finding the Fourth Proportional to 28,148.79, 42,151.75 and 16,897.13

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Solution

The fourth proportional to 28,148.79, 42,151.75 and 16,897.13 is: 25,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.79 : 42,151.75 = 16,897.13 : x
  2. Step 2: Convert to fraction form
    28,148.79/42,151.75 = 16,897.13/x
  3. Step 3: Cross multiply
    28,148.79x = 42,151.75 × 16,897.13
  4. Step 4: Simplify right side
    28,148.79x = 712,243,599.48
  5. Step 5: Solve for x
    x = 712,243,599.48/28,148.79
  6. Step 6: Final answer
    x = 25,302.81

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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.