Home / 35,931.79-53,895.18-13,438.19

Finding the Fourth Proportional to 35,931.79, 53,895.18 and 13,438.19

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Solution

The fourth proportional to 35,931.79, 53,895.18 and 13,438.19 is: 20,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,931.79 : 53,895.18 = 13,438.19 : x
  2. Step 2: Convert to fraction form
    35,931.79/53,895.18 = 13,438.19/x
  3. Step 3: Cross multiply
    35,931.79x = 53,895.18 × 13,438.19
  4. Step 4: Simplify right side
    35,931.79x = 724,253,668.92
  5. Step 5: Solve for x
    x = 724,253,668.92/35,931.79
  6. Step 6: Final answer
    x = 20,156.35

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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.