Home / 38,312.64-52,869.54-21,317.88

Finding the Fourth Proportional to 38,312.64, 52,869.54 and 21,317.88

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Solution

The fourth proportional to 38,312.64, 52,869.54 and 21,317.88 is: 29,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,312.64 : 52,869.54 = 21,317.88 : x
  2. Step 2: Convert to fraction form
    38,312.64/52,869.54 = 21,317.88/x
  3. Step 3: Cross multiply
    38,312.64x = 52,869.54 × 21,317.88
  4. Step 4: Simplify right side
    38,312.64x = 1,127,066,509.38
  5. Step 5: Solve for x
    x = 1,127,066,509.38/38,312.64
  6. Step 6: Final answer
    x = 29,417.62

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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.