Home / 34,715.93-47,916.36-20,378.93

Finding the Fourth Proportional to 34,715.93, 47,916.36 and 20,378.93

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Solution

The fourth proportional to 34,715.93, 47,916.36 and 20,378.93 is: 28,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,715.93 : 47,916.36 = 20,378.93 : x
  2. Step 2: Convert to fraction form
    34,715.93/47,916.36 = 20,378.93/x
  3. Step 3: Cross multiply
    34,715.93x = 47,916.36 × 20,378.93
  4. Step 4: Simplify right side
    34,715.93x = 976,483,906.71
  5. Step 5: Solve for x
    x = 976,483,906.71/34,715.93
  6. Step 6: Final answer
    x = 28,127.84

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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.