Home / 38,485.56-57,681.16-21,859.58

Finding the Fourth Proportional to 38,485.56, 57,681.16 and 21,859.58

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Solution

The fourth proportional to 38,485.56, 57,681.16 and 21,859.58 is: 32,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,485.56 : 57,681.16 = 21,859.58 : x
  2. Step 2: Convert to fraction form
    38,485.56/57,681.16 = 21,859.58/x
  3. Step 3: Cross multiply
    38,485.56x = 57,681.16 × 21,859.58
  4. Step 4: Simplify right side
    38,485.56x = 1,260,885,931.51
  5. Step 5: Solve for x
    x = 1,260,885,931.51/38,485.56
  6. Step 6: Final answer
    x = 32,762.57

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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.