Home / 35,931.30-49,581.96-20,015.40

Finding the Fourth Proportional to 35,931.30, 49,581.96 and 20,015.40

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Solution

The fourth proportional to 35,931.30, 49,581.96 and 20,015.40 is: 27,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,931.30 : 49,581.96 = 20,015.40 : x
  2. Step 2: Convert to fraction form
    35,931.30/49,581.96 = 20,015.40/x
  3. Step 3: Cross multiply
    35,931.30x = 49,581.96 × 20,015.40
  4. Step 4: Simplify right side
    35,931.30x = 992,402,762.18
  5. Step 5: Solve for x
    x = 992,402,762.18/35,931.30
  6. Step 6: Final answer
    x = 27,619.45

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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.