Home / 34,359.93-47,417.23-20,931.75

Finding the Fourth Proportional to 34,359.93, 47,417.23 and 20,931.75

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Solution

The fourth proportional to 34,359.93, 47,417.23 and 20,931.75 is: 28,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,359.93 : 47,417.23 = 20,931.75 : x
  2. Step 2: Convert to fraction form
    34,359.93/47,417.23 = 20,931.75/x
  3. Step 3: Cross multiply
    34,359.93x = 47,417.23 × 20,931.75
  4. Step 4: Simplify right side
    34,359.93x = 992,525,604.05
  5. Step 5: Solve for x
    x = 992,525,604.05/34,359.93
  6. Step 6: Final answer
    x = 28,886.14

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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.