Home / 28,061.78-38,713.95-17,988.35

Finding the Fourth Proportional to 28,061.78, 38,713.95 and 17,988.35

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Solution

The fourth proportional to 28,061.78, 38,713.95 and 17,988.35 is: 24,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.78 : 38,713.95 = 17,988.35 : x
  2. Step 2: Convert to fraction form
    28,061.78/38,713.95 = 17,988.35/x
  3. Step 3: Cross multiply
    28,061.78x = 38,713.95 × 17,988.35
  4. Step 4: Simplify right side
    28,061.78x = 696,399,888.91
  5. Step 5: Solve for x
    x = 696,399,888.91/28,061.78
  6. Step 6: Final answer
    x = 24,816.67

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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.