Home / 38,312.19-52,871.09-21,317.15

Finding the Fourth Proportional to 38,312.19, 52,871.09 and 21,317.15

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Solution

The fourth proportional to 38,312.19, 52,871.09 and 21,317.15 is: 29,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,312.19 : 52,871.09 = 21,317.15 : x
  2. Step 2: Convert to fraction form
    38,312.19/52,871.09 = 21,317.15/x
  3. Step 3: Cross multiply
    38,312.19x = 52,871.09 × 21,317.15
  4. Step 4: Simplify right side
    38,312.19x = 1,127,060,981.79
  5. Step 5: Solve for x
    x = 1,127,060,981.79/38,312.19
  6. Step 6: Final answer
    x = 29,417.82

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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.