Home / 19,931.67-27,505.85-11,434.16

Finding the Fourth Proportional to 19,931.67, 27,505.85 and 11,434.16

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Solution

The fourth proportional to 19,931.67, 27,505.85 and 11,434.16 is: 15,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.67 : 27,505.85 = 11,434.16 : x
  2. Step 2: Convert to fraction form
    19,931.67/27,505.85 = 11,434.16/x
  3. Step 3: Cross multiply
    19,931.67x = 27,505.85 × 11,434.16
  4. Step 4: Simplify right side
    19,931.67x = 314,506,301.43
  5. Step 5: Solve for x
    x = 314,506,301.43/19,931.67
  6. Step 6: Final answer
    x = 15,779.22

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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.