Home / 25,988.07-35,869.10-16,421.88

Finding the Fourth Proportional to 25,988.07, 35,869.10 and 16,421.88

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Solution

The fourth proportional to 25,988.07, 35,869.10 and 16,421.88 is: 22,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988.07 : 35,869.10 = 16,421.88 : x
  2. Step 2: Convert to fraction form
    25,988.07/35,869.10 = 16,421.88/x
  3. Step 3: Cross multiply
    25,988.07x = 35,869.10 × 16,421.88
  4. Step 4: Simplify right side
    25,988.07x = 589,038,055.91
  5. Step 5: Solve for x
    x = 589,038,055.91/25,988.07
  6. Step 6: Final answer
    x = 22,665.71

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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.